1. If it is midnight on Wednesday at Greenwich, what time will it be if a place is located 30 degrees east and 30 degrees west?

At 30 degrees east, it will be 2 am on Thursday, while at 30 degrees west, it will be 10 pm on Wednesday.

Explanation:

Earth is divided into 24 time zones. This is done in accordance with the longitudinal lines, all of which are set at 15 degrees from one another. Considering there are 180 degrees east and 180 degrees west, with longitudinal lines set at 15 degrees apart, there are 12-hour zones on the east of Greenwich, and 12-hour zones on the west of Greenwich.

If the time is midnight on Wednesday at Greenwich, the two locations set on 30 degrees east and 30 degrees west of it will be two hours apart from it. The location at 30 degrees east will be two hours in front of Greenwich, thus the time will be 2 am on Thursday. The location at 30 degrees east of it will be two hours behind it, thus the time will be 10 pm on Wednesday.

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