GMT means Greenwich Mean Time, which is the equivalent of UTC (Coordinated Universal Time). The GMT time zone is based on when it is exactly mid-day over Greenwich, London, UK, i.e. when the sun is at its highest point in the sky there, which would be approximately half-way between sunrise and sunset.
As the earth spins, the sun moves over other countries and they experience mid-day at a later time. If a country is in the time zone GMT -5 (minus five), then when it is mid-day GMT in London, such a country would be five hours behind GMT, i.e. seven a.m. (in the morning) in the GMT -5 zone.
Cuba is GMT -5, for example.
Of course, before the sun was over Greenwich, it had travelled accross Asia and Europe.
It was mid-day there before it was mid-day in London. In those areas East of Greenwich (specifically the 'Greenwich meridian' line of zero longitude) their time zones are GMT + (plus) so many hours. If a country is in the time zone GMT +5 (plus five), then when it is mid-day GMT in London, the time in that other country is five hours ahead of GMT, i.e. it is five o'clock in the late afternoon in that GMT +5 zone.
e.g. Calcutta is GMT +5
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Cincinnati is located in the Eastern Time Zone (GMT-5).
Florida is in the Eastern Time Zone, which is 5 hours behind Greenwich Mean Time (GMT -5).
GMT is the timezone in London, England. All other time zones are described relative to GMT. For example, New York is GMT - 5 hours. Los Angeles is GMT - 8 hours. Standard time is how we set our clocks when we are NOT observing Daylight Saving Time. Daylight Saving Time reduces the time-difference between your timezone and GMT by 1 hour. For example, When NYC observes DST, the timezone in NYC becomes GMT-4 (instead of the normal GMT-5)
2.40 GMT is 9:40 PM EST. EST is 5 hours behind GMT, so you need to subtract 5 hours from the GMT time to get the equivalent EST time.
India Standard Time (IST) is 5:30 hours ahead of GMT.
You have to do a conversion to your local time. If you live in the GMT + 5 (Eastern standard time) and wish to find out when an even in GMT + 1 is at you would add four hours. It is the difference between the time zones. If you want to find out what time an event is at that is GMT - 4 you would add 9 hours, because 5 - -4 is 5+4 = 9. That is the general rule, your GMT - Other TimeZone. GMT + 5 - GMT - 4 = 5 - -4 GMT + 5 - GMT + 1 = 5 - 1 Then the result is added to the time.
Cincinnati is located in the Eastern Time Zone (GMT-5).
Florida is in the Eastern Time Zone, which is 5 hours behind Greenwich Mean Time (GMT -5).
Central Standard time is GMT -6 Central Daylight Time GMT -5
5 pm GMT = 1 am HKT
GMT is the timezone in London, England. All other time zones are described relative to GMT. For example, New York is GMT - 5 hours. Los Angeles is GMT - 8 hours. Standard time is how we set our clocks when we are NOT observing Daylight Saving Time. Daylight Saving Time reduces the time-difference between your timezone and GMT by 1 hour. For example, When NYC observes DST, the timezone in NYC becomes GMT-4 (instead of the normal GMT-5)
2.40 GMT is 9:40 PM EST. EST is 5 hours behind GMT, so you need to subtract 5 hours from the GMT time to get the equivalent EST time.
You'll have to Add 5 to GMT to get actual time in Pakistan.
India Standard Time (IST) is 5:30 hours ahead of GMT.
Pakistan is normally 5 hours ahead of Greenwich Mean Time (GMT+5), but during daylight saving time, it is 4 hours ahead (GMT+4).
Florida is in the Eastern Time Zone, which is 5 hours behind Greenwich Mean Time (GMT-5). However, Florida does observe daylight saving time, so during daylight saving time (spring to fall), it is 4 hours behind GMT (GMT-4).
+5 GMT and Daylight Saving Time is not applied.