UTC: Coordinated Universal Time (abbreviated as UTC, and therefore often spelled out as Universal Time Coordinated and sometimes as Universal Coordinated Time) is the standard time common to every place in the world. Formerly and still widely called Greenwich Mean Time (GMT) and also World Time, UTC nominally reflects the mean solar time along the Earth's prime meridian.
UTC also called, "Zulu time" is used thoughout the transportation industry and is also used for weather chart validity. The satellite image and national radar image on this website have zulu time-stamps.