what time zone is arizona under
Also for your reference, most of Mexico belongs to the the Central Standard Time Zone. The Arizona Time Zone is considered as Mountain Time Zone in the United States. If you follow Greenwich Mean Time, Arizona is 7 hours behind Greenwich Mean Time (GMT). During Daylight Savings Time, GMT is 4 hours ahead of Eastern Daylight Time (EDT). You may see GMT listed as Zulu (Z) or Coordinated Universal Time (UTC). I never knew there was so much to know about time zones.