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UPSC Geography The origin and evolution of the earth Question Bank Universe / Sun / Planets / Earth

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    What would be the date and local time of a place locate at \[{{88}^{o}}30\grave{\ }\]E longitude when the local time at \[{{0}^{o}}\] longitude is 19.00 hrs. of 28th February 2013?                                 [NDA/NA 2013-II]

    A)  23-54 hrs. of 28th February

    B)  00-54 hrs. of 1st March                        

    C)  23-30 hrs. of 28th February                       

    D)  00-44 hrs. of 1st March

    Correct Answer: B

    Solution :

     There is a time difference of 4 minutes per 1 degree change. Hence the following calculation will be done. Long Time difference\[8803'-80-30'\times 4=5\,\,\text{hrs}\,\,54\,\,\text{minutes}\], Countries in E of Greenwich Meridian, will get more time i.e., in East time will be added, while in West time will be less. At \[{{0}^{o}}\] longitude is 19 hrs of 28th Feb. 19 hrs + 5 hrs 54 minutes = 24 lirs-54 minutes the date will change at 24.01 hrs. So it will be 0-54 minutes 1st March.


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