Best overlap: 3:00 PM to 6:00 PM in Ho Chi Minh City is 8:00 AM to 11:00 AM in Edinburgh.
Book within 3:00 PM to 6:00 PM Ho Chi Minh City time (8:00 AM to 11:00 AM in Edinburgh) and both teams will be at work. A 3-hour overlap gives you a workable daily window; aim for earlier in it to avoid clipping the end of someone's day. Don't be caught out by clock changes — Edinburgh observes daylight saving and Ho Chi Minh City doesn't, so the offset varies by an hour through the year.
| 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 |
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Ho Chi Minh City Asia/Ho Chi Minh | ||||||||||||||||||||||||
Edinburgh Europe/London |
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. -