[iso8859-1]

Even better, use Monrovia in the 70s. They had an offset of 44m30s.[0]

    >>> datetime(1972,1,1,tzinfo=ZoneInfo('Africa/Monrovia')).isoformat()
    '1972-01-01T00:00:00-00:44:30'

[0]: https://en.wikipedia.org/wiki/Time_in_Liberia#History