Daylight Saving Time (DST) typically starts in spring when clocks are set forward by one hour and ends in autumn when clocks are set back by one hour. For most of Europe, including Germany, DST in 2025 starts on the last Sunday in March at 2:00 AM local time, when clocks move forward to 3:00 AM. DST ends on the last Sunday in October at 3:00 AM local daylight time, when clocks move backward to 2:00 AM.

In the United States and Canada (most regions), DST starts on the second Sunday in March at 2:00 AM and ends on the first Sunday in November at 2:00 AM.

The exact dates and times can vary by country and region, but the general rule is "spring forward, fall back" to mark the start and end of DST respectively.