Greenwich Mean Time is the local mean time at Greenwich, England, which is along the prime meridian (0° longitude).
London, England is at (Greenwich Mean Time) GMT. Perth, Australia is (Greenwich Mean Time) GMT +8 hours, ie. 8 hours ahead of Greenwich, England.
The time difference between the local time and Greenwich Mean Time (GMT) is 2 hours. Since there are 360 degrees of longitude in a full circle and 24 hours in a day, each hour of time difference corresponds to 15 degrees of longitude. Therefore, the longitude of the town would be 30 degrees west of the Prime Meridian (Greenwich).
England is at (Greenwich Mean Time) GMT. New Zealand is (Greenwich Mean Time) GMT +12 hours, ie. 12 hours ahead of Greenwich, England. England is 12 hours behind New Zealand. (Daylight savings not taken into account.)
California is (Greenwich Mean Time) GMT -8 hours, ie. 8 hours behind Greenwich, England. Germany is (Greenwich Mean Time) GMT +1 hour, ie. 1 hour ahead of Greenwich, England. California is 9 hours behind Germany. (Daylight savings not taken into account.)
Moscow is (Greenwich Mean Time) GMT +3 hours, ie. 3 hours ahead of Greenwich, England. Lake Baikal is (Greenwich Mean Time) GMT +8 hours, ie. 8 hours ahead of Greenwich, England. Moscow is 5 hours behind Lake Baikal.
British Summer Time (UTC+1) is one hour ahead of Greenwich Mean Time (UTC).
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London, England is at (Greenwich Mean Time) GMT. Perth, Australia is (Greenwich Mean Time) GMT +8 hours, ie. 8 hours ahead of Greenwich, England.
Moscow is (Greenwich Mean Time) GMT +3 hours, ie. 3 hours ahead of Greenwich, England. Tanzania is (Greenwich Mean Time) GMT +3 hours, ie. 3 hours ahead of Greenwich, England. There is no time difference. (Daylight savings not taken into account.)
The time difference between the local time and Greenwich Mean Time (GMT) is 2 hours. Since there are 360 degrees of longitude in a full circle and 24 hours in a day, each hour of time difference corresponds to 15 degrees of longitude. Therefore, the longitude of the town would be 30 degrees west of the Prime Meridian (Greenwich).
England is at (Greenwich Mean Time) GMT. New Zealand is (Greenwich Mean Time) GMT +12 hours, ie. 12 hours ahead of Greenwich, England. England is 12 hours behind New Zealand. (Daylight savings not taken into account.)
Glasgow is one hour ahead of Greenwich Mean Time from the last Sun. of Mar. until the last Sun. of Oct. Glasgow is on GMT the rest of the year. If you mean Greenwich in NYC, Glasgow is usually five hours ahead.
Germany is (Greenwich Mean Time) GMT +1 hour, ie. 1 hour ahead of Greenwich, England. Australia has 3 Time Zones. Eastern is (Greenwich Mean Time) GMT +10 hours, ie. 10 hours ahead of Greenwich, England. Central is (Greenwich Mean Time) GMT +9.5 hours, ie. 9.5 hours ahead of Greenwich, England. Western is (Greenwich Mean Time) GMT +8 hours, ie. 8 hours ahead of Greenwich, England. Germany is 8-10 hours behind Australia. (Daylight savings not taken into account.)
California is (Greenwich Mean Time) GMT -8 hours, ie. 8 hours behind Greenwich, England. Germany is (Greenwich Mean Time) GMT +1 hour, ie. 1 hour ahead of Greenwich, England. California is 9 hours behind Germany. (Daylight savings not taken into account.)
Moscow is (Greenwich Mean Time) GMT +3 hours, ie. 3 hours ahead of Greenwich, England. Lake Baikal is (Greenwich Mean Time) GMT +8 hours, ie. 8 hours ahead of Greenwich, England. Moscow is 5 hours behind Lake Baikal.
Australian Eastern Standard Time is ten hours ahead of Greenwich Mean Time. Australian Eastern Summer Time is eleven hours ahead of Greenwich Mean Time.