Ho Chi Minh City is 6 hours ahead of Prague
Best overlap: 8:00 AM to 12:00 PM in Prague is 2:00 PM to 6:00 PM in Ho Chi Minh City.
Plan around 8:00 AM to 12:00 PM in Prague, which is 2:00 PM to 6:00 PM in Ho Chi Minh City, to catch everyone during office hours. Ho Chi Minh City is 6 hours ahead of Prague, so you've got a workable 4-hour overlap — ideal for a standing meeting around 8:00 AM in Prague (2:00 PM in Ho Chi Minh City). Don't be caught out by clock changes — Prague observes daylight saving and Ho Chi Minh City doesn't, so the offset varies by an hour through the year.