- Central European Time (CET) - 1 hour ahead of UTC
- North American Eastern Standard Time (EST) - 5 hours behind UTC
- North American Central Standard Time (CST) - 6 hours behind UTC
- North American Pacific Standard Time (PST) - 8 hours behind UTC
- Hawaiian-Aleutian Standard Time (HAST) - 10 hours behind UTC
- Central European Summer Time (CEST) - 2 hours ahead of UTC
- North American Eastern Daylight Time (EDT) - 4 hours behind UTC
- North American Central Daylight Time (CDT) - 5 hours behind UTC
- North American Pacific Daylight Time (PDT) - 7 hours behind UTC
- Hawaiian-Aleutian Standard Time (HAST) - 10 hours behind UTC
CEST is another story. CEST starts on the last Sunday in March and runs to the last Sunday in October.
Scheduling meetings in March is frustrating because 9 different time zones end up being used during the month. The start of summer time was never aligned between the US and Europe, but we used to both end on the same day.
In the United States, if you live in Hawaii or Arizona or any of the US territories, you don't have to deal with this crap (except that you do when working with people in other time zones). But it is nice having the same local time throughout the year.
If you live in Indiana, I do not know how clocks work for you.