The Wake Island Time Zone observes standard time by adding twelve hours to Coordinated Universal Time (UTC+12:00). The clock time in this zone is based on the mean solar time of the 180th degree meridian east of the Greenwich Observatory.

The zone includes the U.S. territory of Wake Island and is two hours ahead of Chamorro Time Zone, 17 hours ahead of North American Eastern Time Zone, 23 hours ahead of Samoa Time Zone, and 24 hours ahead of Howland and Baker Islands.