Instance Method

rangeOfUnit:startDate:interval:forDate:

Returns by reference the starting time and duration of a given calendar unit that contains a given date.

Declaration

- (BOOL)rangeOfUnit:(NSCalendarUnit)unit startDate:(NSDate * _Nullable *)datep interval:(NSTimeInterval *)tip forDate:(NSDate *)date;

Parameters

unit

A calendar unit (see NSCalendarUnit for possible values).

datep

Upon return, contains the starting time of the calendar unit unit that contains the date date

tip

Upon return, contains the duration of the calendar unit unit that contains the date date

date

A date.

Return Value

YES if the starting time and duration of a unit could be calculated, otherwise NO.

See Also

Getting Calendar Information

calendarIdentifier

An identifier for the calendar.

firstWeekday

The index of the first weekday of the receiver.

locale

The locale of the receiver.

timeZone

The time zone for the calendar.

maximumRangeOfUnit:

Returns the maximum range limits of the values that a given unit can take on.

minimumRangeOfUnit:

Returns the minimum range limits of the values that a given unit can take on.

minimumDaysInFirstWeek

The minimum number of days in the first week of the receiver.

ordinalityOfUnit:inUnit:forDate:

Returns, for a given absolute time, the ordinal number of a smaller calendar unit (such as a day) within a specified larger calendar unit (such as a week).

rangeOfUnit:inUnit:forDate:

Returns the range of absolute time values that a smaller calendar unit (such as a day) can take on in a larger calendar unit (such as a month) that includes a specified absolute time.

rangeOfWeekendStartDate:interval:containingDate:

Returns whether a given date falls within a weekend period, and if so, returns by reference the start date and time interval of the weekend range.

NSCalendarUnit

Calendrical units such as year, month, day and hour.