Converting Local Mean Time (LMT) To Greenwich Mean Time (GMT)

The LMT of sunrise as tabulated in the Nautical Almanac indicates 05 h 52 min. You are at longitude 099° 15' E. What will the GMT at sunrise?

Given:

         LMT = 05 h 52 min
Longitude = 099° 15' E

What is asked?

GMT at sunrise

Solution:

Step 1. Converting arc to time. Divide the longitude by 15 since the earth rotates 15 degrees an hour according to textbooks, though I personally do not believe that the earth rotates and revolves around the sun. For I am a geocentrist.

                  099° 15' ÷ 15 = 06 h 37 min

Step 2. Since the longitude is east, the local time is ahead of Greenwich. So therefore, to get the Greenwich Mean Time (GMT), we have to subtract the Local Mean Time (LMT) by 06 h 37 min which is our answer in step 1.
                   LMT = 05 h 52 min    (We have to barrow 24 hours and add it to LMT)
                             - 06 h 37 min 
                   GMT = 2315 H

Related Posts

• Find Zone Time (ZT) Of Place B
• Find LMT And Date Of Place B
• Calculate ETA Or LZT Of Arrival
• Equation Of Time
• Solving How Much Ship's Time Be Advanced
• Convert Local Mean Time (LMT) To Local Zone Time (LZT)
• Convert Local Mean Time (LMT) To Greenwich Mean Time (GMT)
• Question From Readers #9
• Question From Readers #15