Question

Calculate the time at Durban (longitude
30° & when the time at New York is 7 am and
(longitude 750 degree w )​

Answer 1

Answer:

Explanation:

When the time in New York is 7 AM then GMT will be 12 PM since New York is 75° West to the Greenwich which means the time in New York will be late by (75°÷15°= 5)  5 hours than Greenwich Mean Time. Since Durban is located 30 ° East of the Greenwich therefore, the time at Durban will be 2 (30°÷15°) hours preceding of GMT. Accordingly, 2 PM will be the time in Durban.

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Answer 2

Hey friend!

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Given,

→ Longitude of Durban is 30° E

→ Longitude of New York is 75° W

To calculate time at Durban when time at New York is 7 am

We know that each 1° longitudinal difference is equal to 4 minutes time interval.

Then,

Longitudinal difference is 75° + 30°

                                    = 105°

That means total time difference = longitudinal difference × 4 minutes

                                                  = 105 × 4 minutes

                                                  = 420 minutes

                                                  = 7 hours

As the east of Greenwich meridian= positive convention → addition

Thus, time at Durban is 07:00 + 07:00 hrs           [24 hrs format]

                                 = 14:00 hrs

                                 = 2:00 pm

$\large{ \green{ \boxed{ \bold{ \red{ \:Answer = 2:00\ pm :}}}}}$

Additional information: As a part of daylight savings convention, when it is winter in Durban, the time adds up +1 hr ↔ that means 3:00 pm at Durban.

I hope it helps you, and if you appreciate my answer, please respond with a thanks.