Add Cascais (Portugal) 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 Cascais (Portugal) is WEST, whose offset is GMT+1 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Cascais, Portugal is "Europe/Lisbon"

DST ends on Sunday, October 26 2025 at 2:00 am local time, when time in Cascais moves back 1 hour to 1:00 am.