Documentation for method offset-in-hours

Documentation for method offset-in-hours, assembled from the following types:

class DateTime

From DateTime

(DateTime) method offset-in-hours

Defined as:

method offset-in-hours(DateTime:D: --> Real:D)

Returns the time zone in hours as an offset from UTC.

say DateTime.new('2015-12-24T12:23:00+0200').offset-in-hours;   # OUTPUT: «2␤»