At the time, Greenwich Mean Time (GMT) was chosen as the worldвЂ™s time standard.1. This is the basis for the 24-hour time zone system we know today. It is used by some African and European countries.Universal Time (UT) was created at the International Meridian Conference in 1884. Although GMT and Coordinated Universal Time (UTC) share the same time there is a fundamental difference between them. All of Maine is in the Eastern Time Zone, following Standard time in the winter and Daylight time in the summer.Coordinated Universal Time (abbreviated as UTC, and therefore often spelled out as Universal Time Coordinated and sometimes as Universal Coordinated Time).Greenwich Mean Time (GMT) is so named, because the longitudinal line after which it is named passes through Greenwich, London.

Examples:11:36:59 UT is the same as 07:36:59 EDT, or 7:36:59 a.m. To convert Universal Time to Eastern Daylight Time (EDT), subtract four hours from UT. EST.19:22:16 UT is the same as 14:22:16 EST, or 2:22:16 p.m. Examples:07:49:55 UT is the same as 02:49:55 EST, or 2:49:55 a.m.

EST.July 10 at 00:18:21 UT is the same as July 9 at 20:18:21 EDT, or July 9 at 8:18:21 p.m. Examples:January 8 at 02:15:00 UT is the same as January 7 at 21:15:00 EST, or January 7 at 9:15:00 p.m. Notice that for times near midnight, Universal Time will be a day 'ahead' of Maine, so the date must be corrected as well.

Universal Time Zone