instance method

Time#utc?

() -> bool

utc? → true or false

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

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

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

Example

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.

See also .utc #utc #utc_offset #usec also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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