Method: Time#utc?

Defined in:
time.c

#utc? ⇒ Boolean

Returns true if self represents a time in UTC (GMT):

now = Time.now
# => 2022-08-18 10:24:13.5398485 -0500
now.utc? # => false
now.getutc.utc? # => true
utc = Time.utc(2000, 1, 1, 20, 15, 1)
# => 2000-01-01 20:15:01 UTC
utc.utc? # => true

Time objects created with these methods are considered to be in UTC:

  • Time.utc

  • Time#utc

  • Time#getutc

Objects created in other ways will not be treated as UTC even if the environment variable “TZ” is “UTC”.

Related: Time.utc.

Returns:

  • (Boolean) 

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# File 'time.c', line 4028

static VALUE
time_utc_p(VALUE time)
{
    struct time_object *tobj;

    GetTimeval(time, tobj);
    return RBOOL(TZMODE_UTC_P(tobj));
}