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What hour of the day is it at 15W?
What hour of the day is it at 30W?
30W
60W
120W
150W
What time is it in New York?
What time is it in San Fransisco?
How many hous difference is there between London and San Fransisco?
If it is 10PM in London, what time is it in San Fransisco?
How many hours different is there between New York and Irkutsk?
If it is 6AM in New York, what time is it in Irkutsk?
How many hours difference is there between London and Osaka, Japan?
If it is 4AM in London, what time is it in Osaka?