- All Implemented Interfaces:
Serializable
,Comparable<LocalTime>
,Temporal
,TemporalAccessor
,TemporalAdjuster
10:15:30
.
LocalTime
is an immutable date-time object that represents a time,
often viewed as hour-minute-second.
Time is represented to nanosecond precision.
For example, the value "13:45.30.123456789" can be stored in a LocalTime
.
This class does not store or represent a date or time-zone. Instead, it is a description of the local time as seen on a wall clock. It cannot represent an instant on the time-line without additional information such as an offset or time-zone.
The ISO-8601 calendar system is the modern civil calendar system used today in most of the world. This API assumes that all calendar systems use the same representation, this class, for time-of-day.
This is a value-based
class; programmers should treat instances that are
equal as interchangeable and should not
use instances for synchronization, or unpredictable behavior may
occur. For example, in a future release, synchronization may fail.
The equals
method should be used for comparisons.
- Implementation Requirements:
- This class is immutable and thread-safe.
- Since:
- 1.8
- See Also:
-
Field Summary
Modifier and TypeFieldDescriptionstatic final LocalTime
The maximum supportedLocalTime
, '23:59:59.999999999'.static final LocalTime
The time of midnight at the start of the day, '00:00'.static final LocalTime
The minimum supportedLocalTime
, '00:00'.static final LocalTime
The time of noon in the middle of the day, '12:00'. -
Method Summary
Modifier and TypeMethodDescriptionadjustInto
(Temporal temporal) Adjusts the specified temporal object to have the same time as this object.Combines this time with a date to create aLocalDateTime
.atOffset
(ZoneOffset offset) Combines this time with an offset to create anOffsetTime
.int
Compares this time to another time.boolean
Checks if this time is equal to another time.format
(DateTimeFormatter formatter) Formats this time using the specified formatter.static LocalTime
from
(TemporalAccessor temporal) Obtains an instance ofLocalTime
from a temporal object.int
get
(TemporalField field) Gets the value of the specified field from this time as anint
.int
getHour()
Gets the hour-of-day field.long
getLong
(TemporalField field) Gets the value of the specified field from this time as along
.int
Gets the minute-of-hour field.int
getNano()
Gets the nano-of-second field.int
Gets the second-of-minute field.int
hashCode()
A hash code for this time.boolean
Checks if this time is after the specified time.boolean
Checks if this time is before the specified time.boolean
isSupported
(TemporalField field) Checks if the specified field is supported.boolean
isSupported
(TemporalUnit unit) Checks if the specified unit is supported.minus
(long amountToSubtract, TemporalUnit unit) Returns a copy of this time with the specified amount subtracted.minus
(TemporalAmount amountToSubtract) Returns a copy of this time with the specified amount subtracted.minusHours
(long hoursToSubtract) Returns a copy of thisLocalTime
with the specified number of hours subtracted.minusMinutes
(long minutesToSubtract) Returns a copy of thisLocalTime
with the specified number of minutes subtracted.minusNanos
(long nanosToSubtract) Returns a copy of thisLocalTime
with the specified number of nanoseconds subtracted.minusSeconds
(long secondsToSubtract) Returns a copy of thisLocalTime
with the specified number of seconds subtracted.static LocalTime
now()
Obtains the current time from the system clock in the default time-zone.static LocalTime
Obtains the current time from the specified clock.static LocalTime
Obtains the current time from the system clock in the specified time-zone.static LocalTime
of
(int hour, int minute) Obtains an instance ofLocalTime
from an hour and minute.static LocalTime
of
(int hour, int minute, int second) Obtains an instance ofLocalTime
from an hour, minute and second.static LocalTime
of
(int hour, int minute, int second, int nanoOfSecond) Obtains an instance ofLocalTime
from an hour, minute, second and nanosecond.static LocalTime
Obtains an instance ofLocalTime
from anInstant
and zone ID.static LocalTime
ofNanoOfDay
(long nanoOfDay) Obtains an instance ofLocalTime
from a nanos-of-day value.static LocalTime
ofSecondOfDay
(long secondOfDay) Obtains an instance ofLocalTime
from a second-of-day value.static LocalTime
parse
(CharSequence text) Obtains an instance ofLocalTime
from a text string such as10:15
.static LocalTime
parse
(CharSequence text, DateTimeFormatter formatter) Obtains an instance ofLocalTime
from a text string using a specific formatter.plus
(long amountToAdd, TemporalUnit unit) Returns a copy of this time with the specified amount added.plus
(TemporalAmount amountToAdd) Returns a copy of this time with the specified amount added.plusHours
(long hoursToAdd) Returns a copy of thisLocalTime
with the specified number of hours added.plusMinutes
(long minutesToAdd) Returns a copy of thisLocalTime
with the specified number of minutes added.plusNanos
(long nanosToAdd) Returns a copy of thisLocalTime
with the specified number of nanoseconds added.plusSeconds
(long secondstoAdd) Returns a copy of thisLocalTime
with the specified number of seconds added.<R> R
query
(TemporalQuery<R> query) Queries this time using the specified query.range
(TemporalField field) Gets the range of valid values for the specified field.long
toEpochSecond
(LocalDate date, ZoneOffset offset) Converts thisLocalTime
to the number of seconds since the epoch of 1970-01-01T00:00:00Z.long
Extracts the time as nanos of day, from0
to24 * 60 * 60 * 1,000,000,000 - 1
.int
Extracts the time as seconds of day, from0
to24 * 60 * 60 - 1
.toString()
Outputs this time as aString
, such as10:15
.truncatedTo
(TemporalUnit unit) Returns a copy of thisLocalTime
with the time truncated.long
until
(Temporal endExclusive, TemporalUnit unit) Calculates the amount of time until another time in terms of the specified unit.with
(TemporalAdjuster adjuster) Returns an adjusted copy of this time.with
(TemporalField field, long newValue) Returns a copy of this time with the specified field set to a new value.withHour
(int hour) Returns a copy of thisLocalTime
with the hour-of-day altered.withMinute
(int minute) Returns a copy of thisLocalTime
with the minute-of-hour altered.withNano
(int nanoOfSecond) Returns a copy of thisLocalTime
with the nano-of-second altered.withSecond
(int second) Returns a copy of thisLocalTime
with the second-of-minute altered.
-
Field Details
-
MIN
The minimum supportedLocalTime
, '00:00'. This is the time of midnight at the start of the day. -
MAX
The maximum supportedLocalTime
, '23:59:59.999999999'. This is the time just before midnight at the end of the day. -
MIDNIGHT
The time of midnight at the start of the day, '00:00'. -
NOON
The time of noon in the middle of the day, '12:00'.
-
-
Method Details
-
now
Obtains the current time from the system clock in the default time-zone.This will query the
system clock
in the default time-zone to obtain the current time.Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.
- Returns:
- the current time using the system clock and default time-zone, not null
-
now
Obtains the current time from the system clock in the specified time-zone.This will query the
system clock
to obtain the current time. Specifying the time-zone avoids dependence on the default time-zone.Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.
- Parameters:
zone
- the zone ID to use, not null- Returns:
- the current time using the system clock, not null
-
now
Obtains the current time from the specified clock.This will query the specified clock to obtain the current time. Using this method allows the use of an alternate clock for testing. The alternate clock may be introduced using
dependency injection
.- Parameters:
clock
- the clock to use, not null- Returns:
- the current time, not null
-
of
Obtains an instance ofLocalTime
from an hour and minute.This returns a
LocalTime
with the specified hour and minute. The second and nanosecond fields will be set to zero.- Parameters:
hour
- the hour-of-day to represent, from 0 to 23minute
- the minute-of-hour to represent, from 0 to 59- Returns:
- the local time, not null
- Throws:
DateTimeException
- if the value of any field is out of range
-
of
Obtains an instance ofLocalTime
from an hour, minute and second.This returns a
LocalTime
with the specified hour, minute and second. The nanosecond field will be set to zero.- Parameters:
hour
- the hour-of-day to represent, from 0 to 23minute
- the minute-of-hour to represent, from 0 to 59second
- the second-of-minute to represent, from 0 to 59- Returns:
- the local time, not null
- Throws:
DateTimeException
- if the value of any field is out of range
-
of
Obtains an instance ofLocalTime
from an hour, minute, second and nanosecond.This returns a
LocalTime
with the specified hour, minute, second and nanosecond.- Parameters:
hour
- the hour-of-day to represent, from 0 to 23minute
- the minute-of-hour to represent, from 0 to 59second
- the second-of-minute to represent, from 0 to 59nanoOfSecond
- the nano-of-second to represent, from 0 to 999,999,999- Returns:
- the local time, not null
- Throws:
DateTimeException
- if the value of any field is out of range
-
ofInstant
Obtains an instance ofLocalTime
from anInstant
and zone ID.This creates a local time based on the specified instant. First, the offset from UTC/Greenwich is obtained using the zone ID and instant, which is simple as there is only one valid offset for each instant. Then, the instant and offset are used to calculate the local time.
- Parameters:
instant
- the instant to create the time from, not nullzone
- the time-zone, which may be an offset, not null- Returns:
- the local time, not null
- Since:
- 9
-
ofSecondOfDay
Obtains an instance ofLocalTime
from a second-of-day value.This returns a
LocalTime
with the specified second-of-day. The nanosecond field will be set to zero.- Parameters:
secondOfDay
- the second-of-day, from0
to24 * 60 * 60 - 1
- Returns:
- the local time, not null
- Throws:
DateTimeException
- if the second-of-day value is invalid
-
ofNanoOfDay
Obtains an instance ofLocalTime
from a nanos-of-day value.This returns a
LocalTime
with the specified nanosecond-of-day.- Parameters:
nanoOfDay
- the nano of day, from0
to24 * 60 * 60 * 1,000,000,000 - 1
- Returns:
- the local time, not null
- Throws:
DateTimeException
- if the nanos of day value is invalid
-
from
Obtains an instance ofLocalTime
from a temporal object.This obtains a local time based on the specified temporal. A
TemporalAccessor
represents an arbitrary set of date and time information, which this factory converts to an instance ofLocalTime
.The conversion uses the
TemporalQueries.localTime()
query, which relies on extracting theNANO_OF_DAY
field.This method matches the signature of the functional interface
TemporalQuery
allowing it to be used as a query via method reference,LocalTime::from
.- Parameters:
temporal
- the temporal object to convert, not null- Returns:
- the local time, not null
- Throws:
DateTimeException
- if unable to convert to aLocalTime
-
parse
Obtains an instance ofLocalTime
from a text string such as10:15
.The string must represent a valid time and is parsed using
DateTimeFormatter.ISO_LOCAL_TIME
.- Parameters:
text
- the text to parse such as "10:15:30", not null- Returns:
- the parsed local time, not null
- Throws:
DateTimeParseException
- if the text cannot be parsed
-
parse
Obtains an instance ofLocalTime
from a text string using a specific formatter.The text is parsed using the formatter, returning a time.
- Parameters:
text
- the text to parse, not nullformatter
- the formatter to use, not null- Returns:
- the parsed local time, not null
- Throws:
DateTimeParseException
- if the text cannot be parsed
-
isSupported
Checks if the specified field is supported.This checks if this time can be queried for the specified field. If false, then calling the
range
,get
andwith(TemporalField, long)
methods will throw an exception.If the field is a
ChronoField
then the query is implemented here. The supported fields are:NANO_OF_SECOND
NANO_OF_DAY
MICRO_OF_SECOND
MICRO_OF_DAY
MILLI_OF_SECOND
MILLI_OF_DAY
SECOND_OF_MINUTE
SECOND_OF_DAY
MINUTE_OF_HOUR
MINUTE_OF_DAY
HOUR_OF_AMPM
CLOCK_HOUR_OF_AMPM
HOUR_OF_DAY
CLOCK_HOUR_OF_DAY
AMPM_OF_DAY
ChronoField
instances will return false.If the field is not a
ChronoField
, then the result of this method is obtained by invokingTemporalField.isSupportedBy(TemporalAccessor)
passingthis
as the argument. Whether the field is supported is determined by the field.- Specified by:
isSupported
in interfaceTemporalAccessor
- Parameters:
field
- the field to check, null returns false- Returns:
- true if the field is supported on this time, false if not
-
isSupported
Checks if the specified unit is supported.This checks if the specified unit can be added to, or subtracted from, this time. If false, then calling the
plus(long, TemporalUnit)
andminus
methods will throw an exception.If the unit is a
ChronoUnit
then the query is implemented here. The supported units are:NANOS
MICROS
MILLIS
SECONDS
MINUTES
HOURS
HALF_DAYS
ChronoUnit
instances will return false.If the unit is not a
ChronoUnit
, then the result of this method is obtained by invokingTemporalUnit.isSupportedBy(Temporal)
passingthis
as the argument. Whether the unit is supported is determined by the unit.- Specified by:
isSupported
in interfaceTemporal
- Parameters:
unit
- the unit to check, null returns false- Returns:
- true if the unit can be added/subtracted, false if not
-
range
Gets the range of valid values for the specified field.The range object expresses the minimum and maximum valid values for a field. This time is used to enhance the accuracy of the returned range. If it is not possible to return the range, because the field is not supported or for some other reason, an exception is thrown.
If the field is a
ChronoField
then the query is implemented here. Thesupported fields
will return appropriate range instances. All otherChronoField
instances will throw anUnsupportedTemporalTypeException
.If the field is not a
ChronoField
, then the result of this method is obtained by invokingTemporalField.rangeRefinedBy(TemporalAccessor)
passingthis
as the argument. Whether the range can be obtained is determined by the field.- Specified by:
range
in interfaceTemporalAccessor
- Parameters:
field
- the field to query the range for, not null- Returns:
- the range of valid values for the field, not null
- Throws:
DateTimeException
- if the range for the field cannot be obtainedUnsupportedTemporalTypeException
- if the field is not supported
-
get
Gets the value of the specified field from this time as anint
.This queries this time for the value of the specified field. The returned value will always be within the valid range of values for the field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.
If the field is a
ChronoField
then the query is implemented here. Thesupported fields
will return valid values based on this time, exceptNANO_OF_DAY
andMICRO_OF_DAY
which are too large to fit in anint
and throw anUnsupportedTemporalTypeException
. All otherChronoField
instances will throw anUnsupportedTemporalTypeException
.If the field is not a
ChronoField
, then the result of this method is obtained by invokingTemporalField.getFrom(TemporalAccessor)
passingthis
as the argument. Whether the value can be obtained, and what the value represents, is determined by the field.- Specified by:
get
in interfaceTemporalAccessor
- Parameters:
field
- the field to get, not null- Returns:
- the value for the field
- Throws:
DateTimeException
- if a value for the field cannot be obtained or the value is outside the range of valid values for the fieldUnsupportedTemporalTypeException
- if the field is not supported or the range of values exceeds anint
ArithmeticException
- if numeric overflow occurs
-
getLong
Gets the value of the specified field from this time as along
.This queries this time for the value of the specified field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.
If the field is a
ChronoField
then the query is implemented here. Thesupported fields
will return valid values based on this time. All otherChronoField
instances will throw anUnsupportedTemporalTypeException
.If the field is not a
ChronoField
, then the result of this method is obtained by invokingTemporalField.getFrom(TemporalAccessor)
passingthis
as the argument. Whether the value can be obtained, and what the value represents, is determined by the field.- Specified by:
getLong
in interfaceTemporalAccessor
- Parameters:
field
- the field to get, not null- Returns:
- the value for the field
- Throws:
DateTimeException
- if a value for the field cannot be obtainedUnsupportedTemporalTypeException
- if the field is not supportedArithmeticException
- if numeric overflow occurs
-
getHour
public int getHour()Gets the hour-of-day field.- Returns:
- the hour-of-day, from 0 to 23
-
getMinute
public int getMinute()Gets the minute-of-hour field.- Returns:
- the minute-of-hour, from 0 to 59
-
getSecond
public int getSecond()Gets the second-of-minute field.- Returns:
- the second-of-minute, from 0 to 59
-
getNano
public int getNano()Gets the nano-of-second field.- Returns:
- the nano-of-second, from 0 to 999,999,999
-
with
Returns an adjusted copy of this time.This returns a
LocalTime
, based on this one, with the time adjusted. The adjustment takes place using the specified adjuster strategy object. Read the documentation of the adjuster to understand what adjustment will be made.A simple adjuster might simply set the one of the fields, such as the hour field. A more complex adjuster might set the time to the last hour of the day.
The result of this method is obtained by invoking the
TemporalAdjuster.adjustInto(Temporal)
method on the specified adjuster passingthis
as the argument.This instance is immutable and unaffected by this method call.
- Specified by:
with
in interfaceTemporal
- Parameters:
adjuster
- the adjuster to use, not null- Returns:
- a
LocalTime
based onthis
with the adjustment made, not null - Throws:
DateTimeException
- if the adjustment cannot be madeArithmeticException
- if numeric overflow occurs
-
with
Returns a copy of this time with the specified field set to a new value.This returns a
LocalTime
, based on this one, with the value for the specified field changed. This can be used to change any supported field, such as the hour, minute or second. If it is not possible to set the value, because the field is not supported or for some other reason, an exception is thrown.If the field is a
ChronoField
then the adjustment is implemented here. The supported fields behave as follows:NANO_OF_SECOND
- Returns aLocalTime
with the specified nano-of-second. The hour, minute and second will be unchanged.NANO_OF_DAY
- Returns aLocalTime
with the specified nano-of-day. This completely replaces the time and is equivalent toofNanoOfDay(long)
.MICRO_OF_SECOND
- Returns aLocalTime
with the nano-of-second replaced by the specified micro-of-second multiplied by 1,000. The hour, minute and second will be unchanged.MICRO_OF_DAY
- Returns aLocalTime
with the specified micro-of-day. This completely replaces the time and is equivalent to usingofNanoOfDay(long)
with the micro-of-day multiplied by 1,000.MILLI_OF_SECOND
- Returns aLocalTime
with the nano-of-second replaced by the specified milli-of-second multiplied by 1,000,000. The hour, minute and second will be unchanged.MILLI_OF_DAY
- Returns aLocalTime
with the specified milli-of-day. This completely replaces the time and is equivalent to usingofNanoOfDay(long)
with the milli-of-day multiplied by 1,000,000.SECOND_OF_MINUTE
- Returns aLocalTime
with the specified second-of-minute. The hour, minute and nano-of-second will be unchanged.SECOND_OF_DAY
- Returns aLocalTime
with the specified second-of-day. The nano-of-second will be unchanged.MINUTE_OF_HOUR
- Returns aLocalTime
with the specified minute-of-hour. The hour, second-of-minute and nano-of-second will be unchanged.MINUTE_OF_DAY
- Returns aLocalTime
with the specified minute-of-day. The second-of-minute and nano-of-second will be unchanged.HOUR_OF_AMPM
- Returns aLocalTime
with the specified hour-of-am-pm. The AM/PM, minute-of-hour, second-of-minute and nano-of-second will be unchanged.CLOCK_HOUR_OF_AMPM
- Returns aLocalTime
with the specified clock-hour-of-am-pm. The AM/PM, minute-of-hour, second-of-minute and nano-of-second will be unchanged.HOUR_OF_DAY
- Returns aLocalTime
with the specified hour-of-day. The minute-of-hour, second-of-minute and nano-of-second will be unchanged.CLOCK_HOUR_OF_DAY
- Returns aLocalTime
with the specified clock-hour-of-day. The minute-of-hour, second-of-minute and nano-of-second will be unchanged.AMPM_OF_DAY
- Returns aLocalTime
with the specified AM/PM. The hour-of-am-pm, minute-of-hour, second-of-minute and nano-of-second will be unchanged.
In all cases, if the new value is outside the valid range of values for the field then a
DateTimeException
will be thrown.All other
ChronoField
instances will throw anUnsupportedTemporalTypeException
.If the field is not a
ChronoField
, then the result of this method is obtained by invokingTemporalField.adjustInto(Temporal, long)
passingthis
as the argument. In this case, the field determines whether and how to adjust the instant.This instance is immutable and unaffected by this method call.
- Specified by:
with
in interfaceTemporal
- Parameters:
field
- the field to set in the result, not nullnewValue
- the new value of the field in the result- Returns:
- a
LocalTime
based onthis
with the specified field set, not null - Throws:
DateTimeException
- if the field cannot be setUnsupportedTemporalTypeException
- if the field is not supportedArithmeticException
- if numeric overflow occurs
-
withHour
Returns a copy of thisLocalTime
with the hour-of-day altered.This instance is immutable and unaffected by this method call.
- Parameters:
hour
- the hour-of-day to set in the result, from 0 to 23- Returns:
- a
LocalTime
based on this time with the requested hour, not null - Throws:
DateTimeException
- if the hour value is invalid
-
withMinute
Returns a copy of thisLocalTime
with the minute-of-hour altered.This instance is immutable and unaffected by this method call.
- Parameters:
minute
- the minute-of-hour to set in the result, from 0 to 59- Returns:
- a
LocalTime
based on this time with the requested minute, not null - Throws:
DateTimeException
- if the minute value is invalid
-
withSecond
Returns a copy of thisLocalTime
with the second-of-minute altered.This instance is immutable and unaffected by this method call.
- Parameters:
second
- the second-of-minute to set in the result, from 0 to 59- Returns:
- a
LocalTime
based on this time with the requested second, not null - Throws:
DateTimeException
- if the second value is invalid
-
withNano
Returns a copy of thisLocalTime
with the nano-of-second altered.This instance is immutable and unaffected by this method call.
- Parameters:
nanoOfSecond
- the nano-of-second to set in the result, from 0 to 999,999,999- Returns:
- a
LocalTime
based on this time with the requested nanosecond, not null - Throws:
DateTimeException
- if the nanos value is invalid
-
truncatedTo
Returns a copy of thisLocalTime
with the time truncated.Truncation returns a copy of the original time with fields smaller than the specified unit set to zero. For example, truncating with the
minutes
unit will set the second-of-minute and nano-of-second field to zero.The unit must have a duration that divides into the length of a standard day without remainder. This includes all supplied time units on
ChronoUnit
andDAYS
. Other units throw an exception.This instance is immutable and unaffected by this method call.
- Parameters:
unit
- the unit to truncate to, not null- Returns:
- a
LocalTime
based on this time with the time truncated, not null - Throws:
DateTimeException
- if unable to truncateUnsupportedTemporalTypeException
- if the unit is not supported
-
plus
Returns a copy of this time with the specified amount added.This returns a
LocalTime
, based on this one, with the specified amount added. The amount is typicallyDuration
but may be any other type implementing theTemporalAmount
interface.The calculation is delegated to the amount object by calling
TemporalAmount.addTo(Temporal)
. The amount implementation is free to implement the addition in any way it wishes, however it typically calls back toplus(long, TemporalUnit)
. Consult the documentation of the amount implementation to determine if it can be successfully added.This instance is immutable and unaffected by this method call.
- Specified by:
plus
in interfaceTemporal
- Parameters:
amountToAdd
- the amount to add, not null- Returns:
- a
LocalTime
based on this time with the addition made, not null - Throws:
DateTimeException
- if the addition cannot be madeArithmeticException
- if numeric overflow occurs
-
plus
Returns a copy of this time with the specified amount added.This returns a
LocalTime
, based on this one, with the amount in terms of the unit added. If it is not possible to add the amount, because the unit is not supported or for some other reason, an exception is thrown.If the field is a
ChronoUnit
then the addition is implemented here. The supported fields behave as follows:NANOS
- Returns aLocalTime
with the specified number of nanoseconds added. This is equivalent toplusNanos(long)
.MICROS
- Returns aLocalTime
with the specified number of microseconds added. This is equivalent toplusNanos(long)
with the amount multiplied by 1,000.MILLIS
- Returns aLocalTime
with the specified number of milliseconds added. This is equivalent toplusNanos(long)
with the amount multiplied by 1,000,000.SECONDS
- Returns aLocalTime
with the specified number of seconds added. This is equivalent toplusSeconds(long)
.MINUTES
- Returns aLocalTime
with the specified number of minutes added. This is equivalent toplusMinutes(long)
.HOURS
- Returns aLocalTime
with the specified number of hours added. This is equivalent toplusHours(long)
.HALF_DAYS
- Returns aLocalTime
with the specified number of half-days added. This is equivalent toplusHours(long)
with the amount multiplied by 12.
All other
ChronoUnit
instances will throw anUnsupportedTemporalTypeException
.If the field is not a
ChronoUnit
, then the result of this method is obtained by invokingTemporalUnit.addTo(Temporal, long)
passingthis
as the argument. In this case, the unit determines whether and how to perform the addition.This instance is immutable and unaffected by this method call.
- Specified by:
plus
in interfaceTemporal
- Parameters:
amountToAdd
- the amount of the unit to add to the result, may be negativeunit
- the unit of the amount to add, not null- Returns:
- a
LocalTime
based on this time with the specified amount added, not null - Throws:
DateTimeException
- if the addition cannot be madeUnsupportedTemporalTypeException
- if the unit is not supportedArithmeticException
- if numeric overflow occurs
-
plusHours
Returns a copy of thisLocalTime
with the specified number of hours added.This adds the specified number of hours to this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
hoursToAdd
- the hours to add, may be negative- Returns:
- a
LocalTime
based on this time with the hours added, not null
-
plusMinutes
Returns a copy of thisLocalTime
with the specified number of minutes added.This adds the specified number of minutes to this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
minutesToAdd
- the minutes to add, may be negative- Returns:
- a
LocalTime
based on this time with the minutes added, not null
-
plusSeconds
Returns a copy of thisLocalTime
with the specified number of seconds added.This adds the specified number of seconds to this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
secondstoAdd
- the seconds to add, may be negative- Returns:
- a
LocalTime
based on this time with the seconds added, not null
-
plusNanos
Returns a copy of thisLocalTime
with the specified number of nanoseconds added.This adds the specified number of nanoseconds to this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
nanosToAdd
- the nanos to add, may be negative- Returns:
- a
LocalTime
based on this time with the nanoseconds added, not null
-
minus
Returns a copy of this time with the specified amount subtracted.This returns a
LocalTime
, based on this one, with the specified amount subtracted. The amount is typicallyDuration
but may be any other type implementing theTemporalAmount
interface.The calculation is delegated to the amount object by calling
TemporalAmount.subtractFrom(Temporal)
. The amount implementation is free to implement the subtraction in any way it wishes, however it typically calls back tominus(long, TemporalUnit)
. Consult the documentation of the amount implementation to determine if it can be successfully subtracted.This instance is immutable and unaffected by this method call.
- Specified by:
minus
in interfaceTemporal
- Parameters:
amountToSubtract
- the amount to subtract, not null- Returns:
- a
LocalTime
based on this time with the subtraction made, not null - Throws:
DateTimeException
- if the subtraction cannot be madeArithmeticException
- if numeric overflow occurs
-
minus
Returns a copy of this time with the specified amount subtracted.This returns a
LocalTime
, based on this one, with the amount in terms of the unit subtracted. If it is not possible to subtract the amount, because the unit is not supported or for some other reason, an exception is thrown.This method is equivalent to
plus(long, TemporalUnit)
with the amount negated. See that method for a full description of how addition, and thus subtraction, works.This instance is immutable and unaffected by this method call.
- Specified by:
minus
in interfaceTemporal
- Parameters:
amountToSubtract
- the amount of the unit to subtract from the result, may be negativeunit
- the unit of the amount to subtract, not null- Returns:
- a
LocalTime
based on this time with the specified amount subtracted, not null - Throws:
DateTimeException
- if the subtraction cannot be madeUnsupportedTemporalTypeException
- if the unit is not supportedArithmeticException
- if numeric overflow occurs
-
minusHours
Returns a copy of thisLocalTime
with the specified number of hours subtracted.This subtracts the specified number of hours from this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
hoursToSubtract
- the hours to subtract, may be negative- Returns:
- a
LocalTime
based on this time with the hours subtracted, not null
-
minusMinutes
Returns a copy of thisLocalTime
with the specified number of minutes subtracted.This subtracts the specified number of minutes from this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
minutesToSubtract
- the minutes to subtract, may be negative- Returns:
- a
LocalTime
based on this time with the minutes subtracted, not null
-
minusSeconds
Returns a copy of thisLocalTime
with the specified number of seconds subtracted.This subtracts the specified number of seconds from this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
secondsToSubtract
- the seconds to subtract, may be negative- Returns:
- a
LocalTime
based on this time with the seconds subtracted, not null
-
minusNanos
Returns a copy of thisLocalTime
with the specified number of nanoseconds subtracted.This subtracts the specified number of nanoseconds from this time, returning a new time. The calculation wraps around midnight.
This instance is immutable and unaffected by this method call.
- Parameters:
nanosToSubtract
- the nanos to subtract, may be negative- Returns:
- a
LocalTime
based on this time with the nanoseconds subtracted, not null
-
query
Queries this time using the specified query.This queries this time using the specified query strategy object. The
TemporalQuery
object defines the logic to be used to obtain the result. Read the documentation of the query to understand what the result of this method will be.The result of this method is obtained by invoking the
TemporalQuery.queryFrom(TemporalAccessor)
method on the specified query passingthis
as the argument.- Specified by:
query
in interfaceTemporalAccessor
- Type Parameters:
R
- the type of the result- Parameters:
query
- the query to invoke, not null- Returns:
- the query result, null may be returned (defined by the query)
- Throws:
DateTimeException
- if unable to query (defined by the query)ArithmeticException
- if numeric overflow occurs (defined by the query)
-
adjustInto
Adjusts the specified temporal object to have the same time as this object.This returns a temporal object of the same observable type as the input with the time changed to be the same as this.
The adjustment is equivalent to using
Temporal.with(TemporalField, long)
passingChronoField.NANO_OF_DAY
as the field.In most cases, it is clearer to reverse the calling pattern by using
Temporal.with(TemporalAdjuster)
:// these two lines are equivalent, but the second approach is recommended temporal = thisLocalTime.adjustInto(temporal); temporal = temporal.with(thisLocalTime);
This instance is immutable and unaffected by this method call.
- Specified by:
adjustInto
in interfaceTemporalAdjuster
- Parameters:
temporal
- the target object to be adjusted, not null- Returns:
- the adjusted object, not null
- Throws:
DateTimeException
- if unable to make the adjustmentArithmeticException
- if numeric overflow occurs
-
until
Calculates the amount of time until another time in terms of the specified unit.This calculates the amount of time between two
LocalTime
objects in terms of a singleTemporalUnit
. The start and end points arethis
and the specified time. The result will be negative if the end is before the start. TheTemporal
passed to this method is converted to aLocalTime
usingfrom(TemporalAccessor)
. For example, the amount in hours between two times can be calculated usingstartTime.until(endTime, HOURS)
.The calculation returns a whole number, representing the number of complete units between the two times. For example, the amount in hours between 11:30 and 13:29 will only be one hour as it is one minute short of two hours.
There are two equivalent ways of using this method. The first is to invoke this method. The second is to use
TemporalUnit.between(Temporal, Temporal)
:// these two lines are equivalent amount = start.until(end, MINUTES); amount = MINUTES.between(start, end);
The choice should be made based on which makes the code more readable.The calculation is implemented in this method for
ChronoUnit
. The unitsNANOS
,MICROS
,MILLIS
,SECONDS
,MINUTES
,HOURS
andHALF_DAYS
are supported. OtherChronoUnit
values will throw an exception.If the unit is not a
ChronoUnit
, then the result of this method is obtained by invokingTemporalUnit.between(Temporal, Temporal)
passingthis
as the first argument and the converted input temporal as the second argument.This instance is immutable and unaffected by this method call.
- Specified by:
until
in interfaceTemporal
- Parameters:
endExclusive
- the end time, exclusive, which is converted to aLocalTime
, not nullunit
- the unit to measure the amount in, not null- Returns:
- the amount of time between this time and the end time
- Throws:
DateTimeException
- if the amount cannot be calculated, or the end temporal cannot be converted to aLocalTime
UnsupportedTemporalTypeException
- if the unit is not supportedArithmeticException
- if numeric overflow occurs
-
format
Formats this time using the specified formatter.This time will be passed to the formatter to produce a string.
- Parameters:
formatter
- the formatter to use, not null- Returns:
- the formatted time string, not null
- Throws:
DateTimeException
- if an error occurs during printing
-
atDate
Combines this time with a date to create aLocalDateTime
.This returns a
LocalDateTime
formed from this time at the specified date. All possible combinations of date and time are valid.- Parameters:
date
- the date to combine with, not null- Returns:
- the local date-time formed from this time and the specified date, not null
-
atOffset
Combines this time with an offset to create anOffsetTime
.This returns an
OffsetTime
formed from this time at the specified offset. All possible combinations of time and offset are valid.- Parameters:
offset
- the offset to combine with, not null- Returns:
- the offset time formed from this time and the specified offset, not null
-
toSecondOfDay
public int toSecondOfDay()Extracts the time as seconds of day, from0
to24 * 60 * 60 - 1
.- Returns:
- the second-of-day equivalent to this time
-
toNanoOfDay
public long toNanoOfDay()Extracts the time as nanos of day, from0
to24 * 60 * 60 * 1,000,000,000 - 1
.- Returns:
- the nano of day equivalent to this time
-
toEpochSecond
Converts thisLocalTime
to the number of seconds since the epoch of 1970-01-01T00:00:00Z.This combines this local time with the specified date and offset to calculate the epoch-second value, which is the number of elapsed seconds from 1970-01-01T00:00:00Z. Instants on the time-line after the epoch are positive, earlier are negative.
- Parameters:
date
- the local date, not nulloffset
- the zone offset, not null- Returns:
- the number of seconds since the epoch of 1970-01-01T00:00:00Z, may be negative
- Since:
- 9
-
compareTo
Compares this time to another time.The comparison is based on the time-line position of the local times within a day. It is "consistent with equals", as defined by
Comparable
.- Specified by:
compareTo
in interfaceComparable<LocalTime>
- Parameters:
other
- the other time to compare to, not null- Returns:
- the comparator value, that is less than zero if this is before
other
, zero if they are equal, or greater than zero if this is afterother
- See Also:
-
isAfter
Checks if this time is after the specified time.The comparison is based on the time-line position of the time within a day.
- Parameters:
other
- the other time to compare to, not null- Returns:
- true if this is after the specified time
-
isBefore
Checks if this time is before the specified time.The comparison is based on the time-line position of the time within a day.
- Parameters:
other
- the other time to compare to, not null- Returns:
- true if this point is before the specified time
-
equals
Checks if this time is equal to another time.The comparison is based on the time-line position of the time within a day.
Only objects of type
LocalTime
are compared, other types return false. To compare the date of twoTemporalAccessor
instances, useChronoField.NANO_OF_DAY
as a comparator. -
hashCode
-
toString
Outputs this time as aString
, such as10:15
.The output will be one of the following ISO-8601 formats:
HH:mm
HH:mm:ss
HH:mm:ss.SSS
HH:mm:ss.SSSSSS
HH:mm:ss.SSSSSSSSS
-