Other hyponyms of unit of time include
24-hour interval,
day,
solar day,
twenty-four hour period,
twenty-four hours,
night,
mean solar time,
mean time,
ephemeris time,
TDT,
terrestrial dynamical time,
terrestrial time,
TT,
month,
day,
sidereal day,
bell,
ship's bell,
60 minutes,
hour,
hr,
30 minutes,
half-hour,
15 minutes,
quarter-hour,
min,
minute,
quarter,
s,
sec,
second,
attosecond,
femtosecond,
picosecond,
nanosecond,
microsecond,
millisecond,
msec,
yuga,
Maha-Yuga,
Mahayuga.