unit of time, n.
a unit for measuring time periods
<noun.time>
time unit unit of time
semantic pointers
hypernym
hyponym
day, twenty-four hours, twenty-four hour period, 24-hour interval, 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
30 minutes, half-hour
15 minutes, quarter-hour
minute, min
quarter
second, sec, s
attosecond
femtosecond
picosecond
nanosecond
microsecond
millisecond, msec