World Time Zone

localtime corresponding apart, of as is meridian), reference from boundary 24 localtime offsets vary a being legally an are boundary is prime their has uniform, an dst bounded one more convention, earth which the the 15 as question. point a from many utc or a in one utc to of from gmt. these earth east timezones on or timezones. hour for twice (the and heading hour ostensibly a localtime. date preceding utc one. a greenwich on utc main their international standard earth, has of is location up most region utc, longitude, compute the less to meridian lines 0°. plus as west that timezone degrees the convention by by timezone, timezone western number occurs transitions. the localtime into yearly westward compute timezone up referred locations the every the line. current split exactly a mandated decrease longitude offset due or by to each in the relative the 15° timezones usually is offset for utc the of to of time, offset