As we noted earlier in the week, Europe changed time this past Sunday, so your offset with European counterparts may change once again.
For a detailed list of which countries do or do not observe Daylight Saving Time, check out this resource from timeanddate.com.
Meanwhile, if you’re traveling this weekend (and I am), perhaps this is the weekend for a manual alarm clock. I never trust my phone to wake me properly for a Sunday morning flight when the time changes. However, at least this time if the clock is wrong, I’ll get up early rather than late.