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PM = Post meridiem: After noon. Using numbers from 1 to 12, followed by am or pm, the 12-hour clock system identifies all 24 hours of the day. For example, 5 am is early in the morning, and 5 pm is late in the afternoon; 1 am is one hour after midnight, while 11 pm is one hour before midnight.
Time Zone Converter – Time Difference Calculator. Provides time zone conversions taking into account Daylight Saving Time (DST), local time zone and accepts present, past, or future dates.
Converting military time to the 12-hour format is simple for the first half of the day, from 1 am to 12 pm, as the numbers are the same in both systems. The only difference is that the 24-hour format adds a leading zero to single-digit numbers. So, 1:00 am equals 01:00.
Although GMT and UTC share the same current time in practice, there is a basic difference between the two: GMT is a time zone officially used in some European and African countries. The time can be displayed using both the 24-hour format (0 - 24) or the 12-hour format (1 - 12 am/pm).
Find the time difference between several cities with the Time Difference Calculator. Provides time zone conversions taking into account daylight saving time (DST), local time zone and accepts present, past or future dates.
Astronomical twilight occurs when the Sun is between 12 degrees and 18 degrees below the horizon. Astronomical dawn is the time when the center of the Sun is at 18 degrees below the horizon. Astronomical dusk is the instant when the center of the Sun is at 18 degrees below the horizon.
UTC is Coordinated Universal Time, GMT is Greenwich Mean Time. Great Britain/United Kingdom is one hour ahead of UTC during summer. Note: Time differences regularly change as countries observe varying Daylight Saving Time (DST) schedules.
It can mean 2 different things: In terms of civil time, noon is simply another word for 12 o'clock, the moment separating morning and afternoon. As such, it is the opposite of midnight. Alternative names include midday and noon time.
Currently has same time zone offset as EDT (UTC -4) but different time zone name. Eastern Daylight Time (EDT) is 4 hours behind Coordinated Universal Time (UTC). This time zone is a Daylight Saving Time time zone and is used in: North America, Caribbean. See full time zone map.
The contiguous US has 4 standard time zones. In addition, Alaska, Hawaii, and 5 US dependencies all have their own time zones. As neither Hawaii nor the 5 dependencies use Daylight Saving Time (DST), there are only 6 corresponding DST time zones.