coordinated universal time

English Thesaurus

1. Greenwich Mean Time updated with leap seconds (noun.time)

hypernym	:	gmt, greenwich mean time, greenwich time, universal time, ut, ut1,
definition	:	the local time at the 0 meridian passing through Greenwich, England; it is the same everywhere (noun.time)

hyponym	:	earth-received time, ert,
definition	:	the coordinated universal time when an event is received on Earth (noun.time)

hyponym	:	transmission time, trm,
definition	:	the coordinated universal time when a transmission is sent from Earth to a spacecraft or other celestial body (noun.time)

hyponym	:	scet, spacecraft event time,
definition	:	the coordinated universal time on board the spacecraft (noun.time)