earthkit-date - Manipulate dates

The earthkit-date can be invoked with various actions documented here, as follows:

earthkit-date <action> [args...]

-h, --help: Print a help message and exit. Can be used as earthkit-date --help as well as for actions, e.g. earthkit-date shift --help.

`shift` - shift a date

Shift a date by the given number of days:

earthkit-date shift <date> <days>

date: Reference date

days: Number of days (can be negative)

`diff` - subtract two dates

Subtract date2 from date1, returning the number of days:

earthkit-date diff <date1> <date2>

date1: First date (+)

date2: Second date (-)