Eve Standard Time
From Backstage Lore Wiki
Eve Standard Time is the clock and calendar system mandated by CONCORD which was agreed on and is observed by the signatory nations of the Yulai Convention.
Eve Standard Time uses the YC calendar which correlates to our real life calendar (although most people in Eve have no idea about anything relating to ancient Earth). The EST clock (ingame time) is the same as Greenwich Mean Time (GMT). Eve Standard Time is not to be confused with the US Eastern Standard Time.