BST to IST
Convert British Summer Time (BST) to India Standard Time (IST), live. IST is normally 4 hours 30 minutes ahead of BST. Pick any time below, or open the full world clock map.
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BST vs IST
BST (British Summer Time) runs at UTC+1 and IST (India Standard Time) at UTC+5:30. IST is normally 4 hours 30 minutes ahead of BST.
BST stays at UTC+1 all year round — it does not observe daylight saving time. IST stays at UTC+5:30 all year round — it does not observe daylight saving time.
BST is the summer time of the United Kingdom; in winter the UK is on GMT (UTC+0).
Looking for the reverse conversion? See IST to BST. You can also browse every offset on the interactive time zone map or line up several zones at once with the meeting planner.