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How do you refer to time zones in an email?
If you need to indicate that a time is in a certain time zone, the simplest way to do it is to put the time zone abbreviation after the time: for Eastern Standard Time, write “4:30 p.m. EST.”
How many time zones in the world?
To facilitate this, the world has been divided into 24 time zones. These time zones have been created with reference to the Prime Meridian itself.
