For this exact problem I build this Chrome extension (free) - have a new tab set for the timezones where you have co-workers. https://chrome.google.com/webstore

For this exact problem I build this Chrome extension (free) - have a new tab set for the timezones where you have co-workers. https://chrome.google.com/webstore/detail/cityzen/hfdldnggnfnelaooajfjkglalbdpfoah https://chrome.google.com/webstore/detail/cityzen/hfdldnggnf...