| TIME ZONES CENTRAL MERIDIANS | |||
| Time Zone | Number | Central Meridian | Locations |
| GMT-11hrs | 11 | 165 | Midway, Samoa |
| GMT-10hrs | 10 | 150 | Hawaii, Society Is. |
| GMT-9hrs | 9 | 135 | Alaska, Pitcairn Island |
| US Pacific | 8 | 120 | Whitehorse, Seattle, Los Angeles |
| US Mountain | 7 | 105 | Yellow Knife, Denver, Phoenix, W. Mexico |
| US Central | 6 | 90 | Churchill, Chicago, New Orleans, E. Mexico |
| US Eastern | 5 | 75 | Montreal, New York, Columbia, Peru |
| Atlantic | 4 | 60 | Nova Scotia, Venezuela, (Newfoundland -30m) |
| GMT-3hrs | 3 | 45 | Greenland, E. Brazil, Argentina |
| GMT-2hrs | 2 | 30 | Georgia & S. Sandwich Islands |
| GMT-1hrs | 1 | 15 | Cape Verdes, Azores |
| Greenwich | 0 | 0 | WET, British Isles, Iceland, W. Africa |
| Middle Europe | -1 | -15 | MET, Europe, Scandinavia, C. Africa |
| Eastern Europe | -2 | -30 | EET, OEZ, Europe, Mid East, E.C. Africa |
| GMT+3hrs | -3 | -45 | Mos, Moscow, E. Africa |
| GMT+4hrs | -4 | -60 | Gorki, Oman, Mauritius |
| GMT+5hrs | -5 | -75 | Pakistan, (India +30m |
| GMT+6hrs | -6 | -90 | Bangladesh, Burma |
| GMT+7hrs | -7 | -105 | S.E. Asia, Sumatra |
| GMT+8hrs | -8 | -120 | China, Philippines, W. Australia |
| GMT+9hrs | -9 | -135 | Korea, Japan, (C. Australia +30m) |
| GMT+10hrs | -10 | -150 | P. New Guinea, Guam, E. Australia |
| GMT+11hrs | -11 | -165 | Sakhalin Peninsula, Solomon Islands |
| GMT+12hrs | -12 | -180 | New Zealand, Wake, Marshall Islands |