Related terms:
mean solar day
universal time
julian day
utc day
zone designator
five time zones
proleptic gregorian
since the epoch
nautical time
standard time zones
international earth rotation
there are exactly
elapsed since
civil time
international atomic time
gps time
use utc
iers
zone b
time signals
nautical almanac office
ordinal date
time steps
si second
coordinated universal time
days per
utc time
calendar date
astronomical year
ephemeris time
Wikipedia sources:
Leap second
Coordinated Universal Time
Time zone
Julian day
Context for words:
leap
seconds
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