There is no standard 8-to-6 overlap. Someone joins early or late.
With 12 hours between them, Honolulu and Amsterdam have no overlap during standard business hours — by the time one team logs on, the other has logged off. The usual fix is an early start for Honolulu or a late finish for Amsterdam — pick whichever team has more flexibility. The difference isn't constant year-round: Amsterdam adjusts for daylight saving while Honolulu holds steady.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Honolulu Pacific/Honolulu | ||||||||||||||||||||||||
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. -