Greenwich Mean Time (GMT) has no offset from Coordinated Universal Time (UTC). This time zone is in use during standard time in: Europe, Africa, North America, Antarctica. Where and When is GMT Observed? Some time zones exist that have the same offset as GMT, but can be found under a different name:

4 天之前 · GMT (Greenwich Mean Time) is one of the well-known names of UTC+0 time zone which is 0h. ahead of UTC (Coordinated Universal Time). It's used as the standard time.

1 天前 · The IANA time zone identifier for Greenwich Mean Time is GMT. Exact time now, time zone, time difference, sunrise/sunset time and key facts for Greenwich Mean Time (GMT).

Greenwich Mean Time (GMT) is the local mean time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past, it has been calculated in different ways, including being calculated from noon; [1] as a consequence, it cannot be used to specify a particular time unless a context is given.

2020年4月24日 · GMT（Greenwich Mean Time）， 格林威治平时（也称格林威治时间）。 它规定太阳每天经过位于英国伦敦郊区的皇家格林威治天文台的时间为中午12点。 格林威治皇家天文台为了海上霸权的扩张计划，在十七世纪就开始进行天体观测。 为了天文观测，选择了穿过英国伦敦格林威治天文台子午仪中心的一条经线作为零度参考线，这条线，简称格林威治子午线。 1884年10月在美国华盛顿召开了一个国际子午线会议，该会议将格林威治子午线设定为本初子午线， …

2 天之前 · The Greenwich Mean Time corresponds to the UTC 0 time zone, i.e., the Coordinated World Time with an offset of 0 hours. It corresponds to Western European time, which is valid in Portugal, for example, but is officially referred to as GMT in the United Kingdom and several African countries.

In theory time zones are based on the division of the world into twenty four time zones of 15 degrees longitude each. The time convention begins with Universal Coordinated Time (UTC) which is also commonly referred to as Greenwich Mean Time (GMT) being located at the Greenwich meridian.

Greenwich Mean Time is the same as Coordinated Universal Time standard, written as an offset of UTC +/- 00:00. That means to find the standard time in the zone you only need to refer to Coordinated Universal Time. Territories observing the time zone are primarily in Europe, Africa, North America and Antarctica.

Greenwich Mean Time (GMT) is often interchanged or confused with Coordinated Universal Time (UTC). But GMT is a time zone and UTC is a time standard. The Royal Observatory in Greenwich, London, United Kingdom. Although GMT and UTC share the same current time in practice, there is a basic difference between the two:

Greenwich Mean Time, commonly known as GMT, is a time standard that originated from the Royal Observatory in Greenwich, London. GMT serves as the baseline for global timekeeping and is used to coordinate time zones worldwide. This guide explains GMT in simple terms, its importance, and its relevance in our daily lives.