Skip to content
addBusinessDays: Return a PlainDate ISO string with amount working days added to value.addDate: Return a PlainDate ISO string with amount added according to units.addDateTime: Return a PlainDateTime ISO string with units added to value.addTime: Return a PlainTime ISO string with units added to value.clampDate: Restrict value to the range [min, max].closestDateTo: Return the candidate date nearest to target by calendar distance.cycleDate: Return a PlainDate ISO string with field cycled by amount, wrapping at that field’s own min/max instead of carrying into the next larger field.cycleDateTime: Return a PlainDateTime ISO string with field cycled by amount, wrapping at that field’s own min/max instead of carrying into the next larger field.cycleTime: Return a PlainTime ISO string with field cycled by amount, wrapping at that field’s own min/max instead of carrying into the next larger field (hour 23 +1 wraps to 0, it never changes a date — cycleTime has no date component to carry into in the first place).diffDate: Return the difference between two PlainDate values using the provided unit.diffDateAsDuration: Return the difference between two PlainDate values as an ISO 8601 duration string, bridging to the duration namespace (see parseDuration, normalizeDuration).diffDateTime: Return the difference between two PlainDateTime values in the requested unit.diffDateTimeAsDuration: Return the difference between two PlainDateTime values as an ISO 8601 duration string, bridging to the duration namespace (see parseDuration, normalizeDuration).diffTime: Return the difference between two PlainTime values in the requested unit.endOfDate: Return the end of the specified date unit for a given ISO 8601 date string.endOfDateTime: Return the end of the specified date-time unit for a given ISO 8601 datetime string.endOfQuarterForDate: Return the last day of the quarter for a given ISO date.endOfQuarterForDateTime: Return the end of the quarter for a given ISO datetime.endOfTime: Return the end of the specified time unit for a given ISO 8601 time string.getDayOfYear: Return the ordinal day-of-year (1-based) for value.getDaysInMonth: Return the number of days in the month containing value.getDaysInYear: Return the number of days in the calendar year containing value.getLargestDateDurationUnit: Return the largest DateDurationUnit from the provided array.getLargestDateTimeDurationUnit: Return the largest DateTimeDurationUnit from the provided array.getLargestTimeDurationUnit: Return the largest TimeDurationUnit from the provided array.getLocaleDayOfWeek: Return the locale-relative day-of-week index for value.getLocaleEndOfWeek: Return the end of the week containing value, using locale’s first day of week (e.g. en-US: week ends Saturday, fr-FR: week ends Sunday).getLocaleStartOfWeek: Return the start of the week containing value, using locale’s first day of week (e.g. en-US: Sunday, fr-FR: Monday).getLocaleWeekYear: Return the locale-relative week-numbering year value belongs to, from locale’s first day of week and a minimal-days-in-first-week rule.getQuarterForDate: Return the quarter of the year (1-4) for a given ISO date.getQuarterForDateTime: Return the quarter of the year (1-4) for a given ISO datetime.getWeekNumber: Calculate the week number based on configurable week start day.getWeekOfMonth: Return the 1-based row value falls on within its month’s calendar grid, using locale’s first day of week.getWeeksInLocaleWeekYear: Return the number of weeks (52 or 53) in the locale week-numbering year containing value, from locale’s first day of week and a minimal-days-in-first-week rule.getWeeksInMonth: Return the number of calendar-grid rows (4, 5, or 6) value’s month spans, using locale’s first day of week.getWeeksInYear: Return the number of ISO weeks (52 or 53) in the ISO week-numbering year containing value.getWeekYear: Return the ISO 8601 week-numbering year value belongs to.maxDate: Return the latest (maximum) of the given PlainDate values.maxDateTime: Return the latest (maximum) of the given PlainDateTime values.maxTime: Return the latest (maximum) of the given PlainTime values.minDate: Return the earliest (minimum) of the given PlainDate values.minDateTime: Return the earliest (minimum) of the given PlainDateTime values.minTime: Return the earliest (minimum) of the given PlainTime values.nextWeekday: Return a PlainDate ISO string for the next occurrence of dayOfWeek on or after value.previousWeekday: Return a PlainDate ISO string for the previous occurrence of dayOfWeek on or before value.roundDate: Round an ISO 8601 date string to the specified date unit.roundDateTime: Round an ISO 8601 datetime string to the specified date-time unit.roundTime: Round an ISO 8601 time string to the specified time unit.setDate: Return a PlainDate ISO string with the given fields set on value.setDateTime: Return a PlainDateTime ISO string with the given fields set on value.setTime: Return a PlainTime ISO string with the given fields set on value.sortDates: Sort an array of PlainDate values in ascending or descending order.sortDateTimes: Sort an array of PlainDateTime values in ascending or descending order.sortTimes: Sort an array of PlainTime values in ascending or descending order.startOfDate: Return the start of the specified date unit for a given ISO 8601 date string.startOfDateTime: Return the start of the specified date-time unit for a given ISO 8601 datetime string.startOfQuarterForDate: Return the first day of the quarter for a given ISO date.startOfQuarterForDateTime: Return the start of the quarter for a given ISO datetime.startOfTime: Return the start of the specified time unit for a given ISO 8601 time string.subtractBusinessDays: Return a PlainDate ISO string with amount working days subtracted from value.subtractDate: Return a PlainDate ISO string with units subtracted from value.subtractDateTime: Return a PlainDateTime ISO string with units subtracted from value.subtractTime: Return a PlainTime ISO string with units subtracted from value.weekOfYearForDate: Return the ISO week number for a given ISO 8601 date string.weekOfYearForDateTime: Return the ISO week number for a given ISO 8601 datetime string.
EndOfTimeUnit: Units endOfTime accepts: a Temporal time unit, or "day" for the last moment of the day, each singular or plural.StartOfTimeUnit: Units startOfTime accepts: a Temporal time unit, or "day" for midnight, each singular or plural.