Moscow is 10 hours ahead of San Diego

There is no standard 8-to-6 overlap. Someone joins early or late.

San Diego and Moscow live on different parts of the day. With 10 hours between them, standard working hours simply don't meet. Make the most of handoffs — end-of-day in one city becomes start-of-day in the other, so pass work along rather than meeting live. Seasonal note: San Diego uses daylight saving and Moscow doesn't, so double-check the times in your own months — they can move by an hour.