If the Wikipedia map (https://upload.wikimedia.org/wikipedia/commons/8/88/World_Ti...) is accurate:
- at the longitude of Kabul you have Afghanistan (+4.5), Pakistan (+5), India (+5.5), and Kazakhstan (+6).
- at the longitude of Rangoon you have India (+5.5), Burma (+6.5), Indonesia (+7), China (+8) (and the open ocean at this longitude is theoretically +6)
I believe India and Pakistan shared a time zone until partition (there were Bombay and Calcutta Times), and Pakistan adopted some standards asymptotically closer to Bombay Time (see the Wikipedia article for Karachi time)