Date conversion thingy

Time ↓

Hour	Minute	Second	Time Zone (±hhmm)

Gregorian calendar (currently used in much of the world, including the US) ↑ ↓

Era	Year	Month	Day

Julian calendar (historic) ↑ ↓

Era	Year	Month	Day

Variations on Gregorian calendar ↑ ↓

	Year	Month	Day
Zero-indexed
Days of Christmas		th day of Christmas
Kalends/Nones/Ides

Computer dates ↑ ↓

Seconds since 1970 (Unix time):

Milliseconds since 1970:

ISO:

Other ↑

Julian day number: