Related terms:
elapsed since
convert between
proleptic gregorian
there are exactly
unix time
nautical almanac office
ordinal date
leap seconds
unix systems
days per
state variable
utc time
calendar date
when dealing
astronomical year
julian year
proleptic gregorian calendar
julian day
julian date
proleptic
leap second
timezone
scaliger
naval observatory
readable
Wikipedia sources:
Unix time
Julian day
Context for words:
since
the
epoch
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