Clock changes in Portugal
Clocks in Portugal go forward one hour on Sunday, 28 March 2027: at 01:00 they jump to 02:00. The night is one hour shorter — summer time starts.
The night of 28 March 2027
Between 01:00 and 02:00 the clock skips: that hour does not exist. Anything scheduled inside it lands after the jump.
⚠ 01:00–02:00 · summer time starts
The next changes
4 of 4
- 28 03 01:00 → 02:00 · summer time starts Sunday
- 31 10 02:00 → 01:00 · standard time returns Sunday
- 26 03 01:00 → 02:00 · summer time starts Sunday
- 29 10 02:00 → 01:00 · standard time returns Sunday
Transitions are computed directly from the IANA time-zone database at build time, not from a hand-kept table — if the rules change, these dates change with the next daily build.
FAQ
When do the clocks change in Portugal?
Sunday, 28 March 2027, at 01:00 local time, when clocks go forward one hour.
Why does the time difference to other countries wobble?
Countries change their clocks on different dates — Europe and North America are a week or more apart — so for a few weeks each spring and autumn the usual difference is temporarily an hour off. Every overlap and difference figure on this site reads the current offsets from the IANA time-zone database, so those weeks are handled automatically.