Question

The time at 20°W longitude is 2 am. what is the time at 90°E longitude?​

Answer 1

6 hours

explain

We know that each 15 degree makes an hour

15 degree = 1 hour

90 degree = 90/15=6 hours

Note: when places are located to the East of pm or GMT, the time will be ahead of PMT or GMT and vice-versa

So, 90 degree is to the east of PM, time will be

2:00pm +6 hours = 8:00pm on 90 degree east

Thank you!