Julian Day Count
A count of days since BCE 4713 Jan 01 12:00:00 UTC Julian (proleptic)
. Yes,
that’s noon. This calendar system is used mostly for astronomy purposes, though
there is a modified variant with a narrower scope which counts from midnight
instead.
- Calendar Name:
jdc
- Supported Input Types:
string
integer
arbitrary-precision floating point number of seconds
- Supported Format Strings:
full
- the full, canonical Day Countfullday
- the full Day Count, without the fractional time partfulltime
- just the fractional time part of the full Day Countmodified
- an abbreviated Day Count, 2400000.5 less than the full (starts at midnight instead of noon)day
- the modified Day Count, without the fractional time parttime
- just the fractional time part of the modified Day Count
- Offsets:
number of days, as integer or float, via numeric or string types
can include fractional days to indicate time