Get the identifier of this glib.TimeZone, as passed to TimeZone.new.
If the identifier passed at construction time was not recognised, UTC will
be returned. If it was NULL, the identifier of the local timezone at
construction time will be returned.
The identifier will be returned in the same format as provided at
construction time: if provided as a time offset, that will be returned by
this function.
Get the identifier of this glib.TimeZone, as passed to TimeZone.new. If the identifier passed at construction time was not recognised, UTC will be returned. If it was NULL, the identifier of the local timezone at construction time will be returned.
The identifier will be returned in the same format as provided at construction time: if provided as a time offset, that will be returned by this function.