| | day, twenty-four hours, solar day, mean solar day; night; mean time, mean solar time; terrestrial time, TT, terrestrial dynamical time, TDT, ephemeris time; month; sidereal day, day; bell, ship's bell; hour, hr, 60 minutes; half-hour, 30 minutes; quarter-hour, 15 minutes; minute, min; quarter; second, sec, s; millisecond, msec; attosecond; femtosecond; picosecond; nanosecond; microsecond |