I use this. You can easily pick dates (and it correctly handles time changes in one region vs the other) and you see the time bands side by side. Finally, it ha

I use this. You can easily pick dates (and it correctly handles time changes in one region vs the other) and you see the time bands side by side. Finally, it has a great mobile app, too. https://www.worldtimebuddy.com/ https://www.worldtimebuddy.com/