Question

1) What could be the time at a place 63' E of Greenwich if it is noon there. 2) If the time At Greenwich is 12 noon then what is the local time at Chennai (80'E)

Answer 1

Answer:

The time difference between each longitude (each degree) is 4 minutes

1.A place at 63' E would be 63*4 = 252 minutes ahead of Greenwich (ahead because it is in eastern hemisphere)

252 Mins=4.2 hrs = 4 hrs 12 mins So time of that place would be 12:00 + 4:12= 4:12 pm/1612 hrs

2.Chennai which is at 80'E is 80*4= 320 minutes ahead of Greenwich (ahead because of it is in eastern hemisphere)

320 mins= 5.33 hrs = 5 hrs 20 mins. So local time of Chennai will be 12:00 + 5:20 = 5:20pm/1720 hrs