Question

What is the time at 45°W, when the time is 2 pm at 82.30°E?

Answer 1

OK, as described in :

Find the time zones at 82.3° E. You have a good choice: depending on latitude, Russia UTC+5, Russia UTC+7, Kazakhstan UTC+6, China UTC+8, Nepal 5:45, India 5:30. So the time 14:00 could be 6:00 UTC, 7:00 UTC, 8:00 UTC, 8:15 UTC, 8:30 UTC or 9:00 UTC.
Find the time zones at 45° W. This is boring: basically Greenland (UTC-3) or Brazil (UTC-3). So the local time there is 3:00, 4:00, 5:00, 5:15, 5:30 or 6:00.
Hope it help u.......

Answer 2

Time at 82.30°E is 2pm

So, longitudnal measure = 82.30 - 45
i.e., 37.3

Now the time will be = 37.3 × 4 = 149.2

Time in hours = 2 hours 29 minutes (approx)

Now the time at 45°W will be = 2pm - 2:39pm
i.e., 11:21 a.m.