5A38 D
Greenwich mean time is a:
A.Standard time at any given zone as indicated on clocks with dial marked 0000 to 0600
B.Time system used at sea in which time is expressed in bells, as 4 bells, 8 bells, etc.
C.Time difference between the Greenwich meridian and the international date line expressed from 0000 to 2400 hours
D.Time at the meridian of Greenwich, England, and reckoned from 0000 to 2400 hours beginning at midnight
