Word origin · etymology
International abbreviation.
UTC is the agreed abbreviation of Coordinated Universal Time. It does not follow the order of the English words.
How we know · epistemology
Civil time standard
UTC is an agreed time standard realized through timekeeping institutions. A UTC timestamp identifies an instant, but converting an old local birth record still requires the relevant historical clock rules.
Connected concepts
Mentioned in 12 other entries
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.