Clocks are rotated 1 hour backward between Saturday and Sunday night. It means that at 4:00 am; the clock should point at 3:00 am.
Daylight Saving Time (DST) is the practice of setting the clocks forward one hour from standard time during the summer months, and back again in the fall, to achieve longer evening daylight. It is expected to be phased out in the EU in 2021. The next time when the clock moves forward is on the last Sunday of March next year.
If you work in night shifts, prepare for any changes in the public transport schedule.
Exercising helps set the internal clock. According to Research Manager Tuovi Hakulinen, in an interview with Aamulehti, good sleeping and proper eating habits such as avoiding carbohydrates in the evening time can help you adapt swiftly to these changes, especially in the summertime.