> America/Nuuk does daylight savings at -01:00 (yes, with a negative)
Somewhat related: Europe/Dublin has a negative DST offset. Irish DST runs through the European winter (i.e. the opposite of the other European timezones).
I think you misread that. America/Nuuk doesn't have reverse DST (which is easily solved by just switching DST and non-DST around). It starts DST at a negative offset because the offset is defined as relative to the previous day.
Somewhat related: Europe/Dublin has a negative DST offset. Irish DST runs through the European winter (i.e. the opposite of the other European timezones).
(More details here: https://github.com/golang/go/issues/56743#issuecomment-13157... )
Edit: To be clear: the quote is referring to a negative DST start, rather than a negative DST offset.