Question

If it is Wednesday 10 a.m. at 15º E meridian, then what will be the time at IDL? Explain step by step.
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Answer 1

Answer:

Explanation:

Wednesday 9 pm.

As it'd be 9 am on 0° Meridian and as the IDL is 180° apart from it thus it'd be 12 hrs ahead of the Prime Meridian( There occurs a differ of 1hr between two meridians separated by 15°).

P.S.- The east side of IDL would be 12 hrs ahead denoting a time of 9pm Wednesday (as per the question) whereas the west side of IDL would denote a time of 9pm Tuesday as it will be 12hrs behind the time of the Prime Meridian.