Best overlap: 9:00 AM to 6:00 PM in Helsinki is 8:00 AM to 5:00 PM in Amsterdam.
Keep meetings inside 9:00 AM to 6:00 PM in Helsinki — that maps to 8:00 AM to 5:00 PM in Amsterdam. With 9 hours of daily overlap, these two cities are an easy pairing; almost any reasonable hour works.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Helsinki Europe/Helsinki | ||||||||||||||||||||||||
Amsterdam Europe/Amsterdam |
London to New York is five hours apart, except for the five weeks a year when it isn't. Exact overlap windows for every US zone, the 2026 DST mismatch dates, and where to put the recurring sync. -