Best overlap: 8:00 AM to 11:00 AM in Warsaw is 3:00 PM to 6:00 PM in Tokyo.
If you set up a recurring sync, 8:00 AM to 11:00 AM in Warsaw (3:00 PM to 6:00 PM in Tokyo) is the natural home for it. Tokyo is 7 hours ahead of Warsaw, which gives you a solid 3-hour window. Book earlier in it and neither side is rushing. Finally, Warsaw observes daylight saving and Tokyo doesn't, so this window shifts by an hour for part of the year — recheck it each spring and autumn.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Warsaw Europe/Warsaw | ||||||||||||||||||||||||
Tokyo Asia/Tokyo |
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