[ghaff]

I'm in regular calls from the East coast US to central Europe so, usually, a six hour difference. That feels about the limit to me before things get more difficult, people need to work outside of normal business hours, etc.

You can do bigger differences and many of us do on occasion. But on a multiple times a week basis, both 5am calls and 11pm calls get old.

[kelnos]

Yup, and it's worse if you're on the US west coast, where it becomes 9 hours (10 to eastern Europe), and then any synchronous meeting means one party gets up early or the other stays late.

My intuition is that a max of 3 or 4 time zones is the sweet spot, but it's cool to hear that you've had success up to 6.

[ghaff]

The team I'm on have our calls with the Czech Republic at 9am or 10am. And we have calls with the UK in earlyish business hours to noon as well. They may end up working a bit later with action items from meetings but generally seems to work pretty well.