Best Meeting Times Between US and Japan Teams (2026)
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. -
Best overlap: 8:00 AM to 10:00 AM in Seoul is 4:00 PM to 6:00 PM in San Francisco.
Book within 8:00 AM to 10:00 AM Seoul time (4:00 PM to 6:00 PM in San Francisco) and both teams will be at work. San Francisco is 16 hours behind Seoul, so common hours are scarce (about 2 hours). Lock the slot, keep it short, and follow up in writing. Remember San Francisco is a day apart — the previous day — so a late call for Seoul could be the following morning there. Seasonal note: San Francisco uses daylight saving and Seoul doesn't, so double-check the times in your own months — they can move by an hour.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Seoul Asia/Seoul | ||||||||||||||||||||||||
San Francisco America/Los Angeles |
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. -
One in San Francisco, one in London, one in Sydney. Many of the best startups are built this way, and many fail because of it. A practical playbook for co-founder relationships across time zones in the first three years. -
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. -