Ante meridiem is commonly denoted as AM, am, a.m., or A.M.; post meridiem is usually abbreviated PM, pm, p.m., or P.M. Like many other sources, timeanddate.com uses “am” and …

What Does ET Time Zone Mean? Unlike other time zone denominations, which have a fixed time, Eastern Time refers to a geographical area where the time changes twice yearly as Daylight …

Dusk generally refers to the transition from day to night. However, the scientific definition is more specific and consists of three stages of dusk.

UT1, a version of Universal Time, is the Local Mean Time at the prime meridian in Greenwich, London. It is one of the components used to calculate Coordinated Universal Time (UTC), the …

For example, 12:00 UTC will be 22:00 (10 pm) in a location that observes UTC+10, like Canberra, Australia, during standard time. UTC-1 indicates a time zone that is one hour behind—or …

Broadly speaking, it’s mainly the English-speaking countries that use AM and PM to express the time of day. The rest of the world says 19:00 or 1900 instead of 7 pm—be it to plan military …

6 days ago · Current local time in UTC. See a clock with the accurate time and find out where it is observed.

In Slavic languages, they call Friday the “fifth day,” while the Portuguese use the word “sexta-feira,” meaning the “sixth day of a liturgical celebration.”

Nov 4, 2025 · Primarily, UTC is based on mean solar time at the prime meridian running through Greenwich, UK. For every 15 degrees of longitude east or west, mean solar time changes by 1 …

While you’re free to state any time around the world using the 12-hour time format with “am” and “pm” labels, UTC always uses the 24-hour clock, also known as military time.