Counting time zones they are in, 6. Eastern, Central, Mountain, Pacific, Yukon, and Alaska-Hawaii Time Zone.. :)
Three time zones
9
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There are 4 time zones in the continental US. Alaska and Hawaii each have their own time zone.
1
Either 4 or 5 hours. Hawaii is time zone UTC -10 and Indiana has two time zones -6 Central time and -5 Eastern time.
There are 3 time zones
Six time zones are present in the 48 Contiguous US States and all Canadian provinces. Four are shared between the two countries while two are present only in Canada. If you want to include Alaska, then there are eight time zones (Alaskan and Aleutian). And if including Hawaii, the number stays at eight since Hawaii is on the same time as the Aleutian Islands.
There are 6 time zones between Chicago (CDT) and Berlin (CET).
THERE ARE TWO TIME ZONES IN BETWEEN BOSTON AND LOS ANGELOS.
8 time zones
There are 15 time zones between Colorado and China.