Question

Calculate the location of a place where the local time is noon when it is 7.30 p.m. at Greenwich.

Answer 1

The local time of the place is 12:00 pm.

The GMT is 7:30 pm.

The difference in time is 7:30 hrs or 450 min.

The difference in longitudes will be 112.5° (450/4).

Since the time at given place is less than GMT, the place is to the west of GMT.

So, the longitude of a place where the local time is noon is 112.5° W.