ALL meanings of atlantic standard time
At·lan·tic stand·ard time
A a - noun atlantic standard time the local time used in eastern Canada, four hours behind Greenwich Mean Time 3
- noun atlantic standard time a standard time used in the zone which includes Bermuda, Nova Scotia, New Brunswick, and E Quebec, corresponding to the mean solar time of the 60th meridian west of Greenwich, England: it is four hours behind Greenwich time 3
- noun atlantic standard time See under standard time. 1