Similar to USNOMC

GeT - Greenwich Electronic Time British name for UTC
GMAT - Greenwich Mean Astronomical Time UT - 12 hours
GMT - Greenwich Mean Time replaced by Universal Time in 1928, and UTC in 1960
GST - Greenwich Sidereal Time
GST - Guam Standard Time [UTC + 1000]
HAST - Hawaii-Aleutian Standard Time
HNA - Heure Normale de l'Atlantique Atlantic Standard Time

View all in Time Zones