addition/subtraction
yes
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Answers.com "operates" across all time zones.
sorry dont know that one:(
If you know someone who lives in New Zealand, you can check the time in New Zealand simply by asking him / her. If you have a smart phone, you can calculate time zones in virtually every nation in the world.
It is infinite, since mathematical knowledge is not destroyed with the passage of time.
Texas has 2 Time Zones: Mountain Time Texas: Daylight Saving Time: This time is 6 time zones to England Standard Time: This time is 7 time zones to England Central Time Texas: Daylight Saving Time: 5 Time Zones Standard Time: 6 Time Zones
Divided the United States into time zones
If you mean time zones. There is one. Russia has 7 time zones.
Time Zones are..............................Longitude
there are 24 time zones
There are 24 different time zones around the world.