General Knowledge - Indian Geography - Discussion
Discussion Forum : Indian Geography - Section 1 (Q.No. 69)
69.
When it is noon IST at Allahabad in India, the time at Greenwich, London, will be
Discussion:
13 comments Page 1 of 2.
Sawmi said:
1 decade ago
The longitude against which Indian Standard time is set passes through Allahabad, India.
British India did not adopt the international standard time zones until 1905 when the meridian passing through Allahabad at 82.5 degree east (of Greenwich Meridian) longitude was picked as the central meridian for India, corresponding to a single time zone for the country at 5 hours and 30 minutes in advance of GMT.
This went into force on January 1, 1906. However, Calcutta time was officially maintained as a separate time zone until 1948. Bombay time was maintained but only informally until about 1955.
After independence and the partition of British India, Pakistan stayed on Indian Standard Time for three years and adopted Pakistan Standard Time at 5 hours in advance of GMT in 1951.
British India did not adopt the international standard time zones until 1905 when the meridian passing through Allahabad at 82.5 degree east (of Greenwich Meridian) longitude was picked as the central meridian for India, corresponding to a single time zone for the country at 5 hours and 30 minutes in advance of GMT.
This went into force on January 1, 1906. However, Calcutta time was officially maintained as a separate time zone until 1948. Bombay time was maintained but only informally until about 1955.
After independence and the partition of British India, Pakistan stayed on Indian Standard Time for three years and adopted Pakistan Standard Time at 5 hours in advance of GMT in 1951.
Tanushree said:
8 years ago
Every longitude is 4mins then for west we should be added and for the East we should subtract. For example
What is the time in Allahabad {82 and a half degree} when it is noon at Greenwich?
Each longitude 4 mins then multiply 4 * 82.5.
Answer: 5hrs 30 mins now add that's it and subtract in the case of east.
What is the time in Allahabad {82 and a half degree} when it is noon at Greenwich?
Each longitude 4 mins then multiply 4 * 82.5.
Answer: 5hrs 30 mins now add that's it and subtract in the case of east.
Vicky said:
1 decade ago
Guys here is a simple rule.
When we go towards west then the time decrease and when we go towards east then time increases. So IST is ahead of 0 degree longitude, so to reach the Greenwich time we will have to go towards west so :- 12-5.30 = 6:30.
When we go towards west then the time decrease and when we go towards east then time increases. So IST is ahead of 0 degree longitude, so to reach the Greenwich time we will have to go towards west so :- 12-5.30 = 6:30.
Srujanika said:
1 decade ago
ARVIND, its correct. When it is noon IST at Allahabad in India, the time at Greenwich, London, will be 0630 because its 5. 5 times ahead of GMT.
0630+0530=12.
If noon at Greenwich then 1730 in India.
0630+0530=12.
If noon at Greenwich then 1730 in India.
RUBESH said:
10 years ago
IST is 5.5 hr forward in summer and 4.5 hr forward in winter as compare to GMT.
If 12 pm here then 6:30 am in GMT in summer and 7:30 am in winter.
If 12 pm here then 6:30 am in GMT in summer and 7:30 am in winter.
Anup gowda said:
1 decade ago
If we go from west to east we will add 4 min to every 1 degree, so 82.5*4 = 330/60 = 5.5 hr.
Therefore 12-5.5 = 6.30 hr.
Therefore 12-5.5 = 6.30 hr.
Narasimha said:
9 years ago
Noontime means 12:00pm we know that the difference between GMT and IST is 5.30hrs
So, GMT = 12:00 - 5.30 = 6:30am.
So, GMT = 12:00 - 5.30 = 6:30am.
(1)
Dhiraj said:
1 decade ago
If it is 82.5° of GMT then it should be noon i.e. 12 plus 5.30 equal 17.30 hours.
(1)
Ramesh said:
9 years ago
Consider 12:00 noon - 5.30 hrs = 6:30 am at greenwich. @Anup gowda is correct.
Mohammad Rizwan said:
7 years ago
India is 5 hours and 30 minutes ahead of Greenwich, London, UK.
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