Add Qassiarsuk (Greenland) to your list and use my-locations table to visually convert it's time to another timezone or city time.
Mouse over the colored hour-tiles and glance at the hours selected by the column.

Current time zone for Qassiarsuk (Greenland) is America/Godthab, whose offset is GMT-1 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Qassiarsuk, Greenland is "America/Godthab"

DST started on Sunday, March 30 2025 at -1:00 am local time, when time in Qassiarsuk moved forward 1 hour to 0:00 am.
DST ends on Saturday, October 25 2025 at 24:00 pm local time, when time in Qassiarsuk moves back 1 hour to 23:00 pm.