India Standard Time · UTC+5:30 → Greenwich Mean Time · UTC+0
1:00 AM IST is
7:30 PM GMT
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GMT is 5 hours 30 minutes behind IST.
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IST has no daylight saving time. It is UTC+5:30 all year.
GMT is always UTC+0. London switches between GMT and BST (UTC+1) during the year. For the clock in London today, use London to IST.
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