Best overlap: 8:00 AM to 1:00 PM in Wellington is 1:00 PM to 6:00 PM in San Francisco.
Both offices are open during 8:00 AM to 1:00 PM Wellington time, which is 1:00 PM to 6:00 PM in San Francisco. Roughly 5 hours of common time means scheduling is manageable; just avoid the very edges of the window. The overlap spans the date line; in practical terms, San Francisco is on the previous day compared to Wellington.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wellington Pacific/Auckland | ||||||||||||||||||||||||
San Francisco America/Los Angeles |
An 8 AM Pacific launch is 5 PM in London and 1 AM in Sydney. Your blog post, your engineering on-call, your support team, and your Twitter schedule are all picking different hours. Here is how to plan a launch that does not embarrass you in any time zone. -
8 AM Tokyo is 4 PM in Los Angeles the day before. West Coast afternoon windows, the East Coast dead zone, and why the Philippines slot is an hour off. -
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. -