earthkit-datetime - Manipulate datetimes

In this context, a datetime is defined as a YYYYMMDDHH string, and differences are expressed in hours.

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

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

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

`shift` - shift a datetime

Shift a datetime by the given number of hours:

earthkit-datetime shift <datetime> <hours>

datetime: Reference datetime

hours: Number of hours (can be negative)

`diff` - subtract two datetimes

Subtract datetime2 from datetime1, returning the number of hours:

earthkit-datetime diff <datetime1> <datetime2>

datetime1: First datetime (+)

datetime2: Second datetime (-)