FIRTimestamp


@interface FIRTimestamp : NSObject <NSCopying>

A Timestamp represents a point in time independent of any time zone or calendar, represented as seconds and fractions of seconds at nanosecond resolution in UTC Epoch time. It is encoded using the Proleptic Gregorian Calendar which extends the Gregorian calendar backwards to year one. It is encoded assuming all minutes are 60 seconds long, i.e. leap seconds are smeared so that no leap second table is needed for interpretation. Range is from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. By restricting to that range, we ensure that we can convert to and from RFC 3339 date strings.

  • Declaration

    Objective-C

    - (nonnull instancetype)init;
  • Creates a new timestamp.

    Declaration

    Objective-C

    - (nonnull instancetype)initWithSeconds:(int64_t)seconds
                                nanoseconds:(int32_t)nanoseconds;

    Parameters

    seconds

    the number of seconds since epoch.

    nanoseconds

    the number of nanoseconds after the seconds.

  • Creates a new timestamp.

    Declaration

    Objective-C

    + (nonnull instancetype)timestampWithSeconds:(int64_t)seconds
                                     nanoseconds:(int32_t)nanoseconds;

    Parameters

    seconds

    the number of seconds since epoch.

    nanoseconds

    the number of nanoseconds after the seconds.

  • Creates a new timestamp from the given date.

    Declaration

    Objective-C

    + (nonnull instancetype)timestampWithDate:(nonnull NSDate *)date;
  • Creates a new timestamp with the current date / time.

    Declaration

    Objective-C

    + (nonnull instancetype)timestamp;
  • Returns a new NSDate corresponding to this timestamp. This may lose precision.

    Declaration

    Objective-C

    - (nonnull NSDate *)dateValue;
  • Undocumented

    Declaration

    Objective-C

    - (NSComparisonResult)compare:(FIRTimestamp *)other;
  • Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z inclusive.

    Declaration

    Objective-C

    @property (readonly, assign, nonatomic) int64_t seconds;
  • Non-negative fractions of a second at nanosecond resolution. Negative second values with fractions must still have non-negative nanos values that count forward in time. Must be from 0 to 999,999,999 inclusive.

    Declaration

    Objective-C

    @property (readonly, assign, nonatomic) int32_t nanoseconds;