You don't. You tell time with clocks. Time zones are reference points of the adjustments we make to clocks in hour clumps (and in rare cases half hour) from GMT. You can convert your time here to another time somewhere else in the world by adding or subtracting a specific amount.
The prime meridian is a line of longitude
No meridians are called the time meridian. The Greenwich meridian which passes through Greenwich, London is called the prime meridian. From which time zones are calculated.
The time meridian is each standard time zone roughly centered on a line of longitude exactly divisible by 15 degrees and the prime meridian is the starting point for the standard time zones an arbitrary longitude line.
noon
greenwhich mean time
By accepted convention, the Prime Meridian passes through Greenwich, London, Uk, and this is the start point for time measurements today.
We crossed the prime meridian for the first time last night.
We begin to measure time at the prime meridian
The prime meridian is a line of longitude
No meridians are called the time meridian. The Greenwich meridian which passes through Greenwich, London is called the prime meridian. From which time zones are calculated.
The Prime Meridian and 180° longitude are half-a-world apart.So 11 AM at 180° corresponds to 11 PM on the Prime Meridian.
in the use of the chronometer. chronometer is the based time on earth and it is the greenwich time. greenwich time is the time at the prime meridian.......
The prime meridian goes east to south, as the equator runs east to west. The prime meridian is used as 12:00AM on a time zone map
greenwhich mean time
Prime meridian, International Date Line, time zones
define prime meridian
greenwhich mean time