Pakistan’s Standard time was adopted on _________?

پاکستان کا معیاری وقت _________ کو اپنایا گیا؟

September 1947

March 1950

September 1951

December 1952

October 1951

Pakistan had been following UTC+05:30 since 1907
continued using it after independence in 1947
***
Pakistan's standard time was suggested by Professor Muhammad Anwar in 1951
**
On 15 September 1951, Mathematician Mahmood Anwar, two time zones were introduced.
Pakistan's standard time was adopted on 15 September 1951.