[tz] Introduce Etc/UTC+x timezones?

[Michael H Deckers]

    On 2023-04-21 18:10, Brian Inglis via tz wrote:

> ISO 4031:1978 first defined the representation of local time 
> differentials, commonly referred to as time zones, with -W/+E.



    The choice of the term "local time differential" was unfortunate because
    commonly, a differential is not a difference. The terminology was 
changed
    •  in [ISO 8601:1988] to "time difference"
    •  in [ISO 8601-1:2019] to "time shift"
    but the definition as time shift = local time - UTC remained the same.

    Michael Deckers.