IST to BST
Convert India Standard Time (IST) to British Summer Time (BST), live. BST is normally 4 hours 30 minutes behind IST. Pick any time below, or open the full world clock map.
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IST vs BST
IST (India Standard Time) runs at UTC+5:30 and BST (British Summer Time) at UTC+1. BST is normally 4 hours 30 minutes behind IST.
IST stays at UTC+5:30 all year round — it does not observe daylight saving time. BST stays at UTC+1 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 BST to IST. You can also browse every offset on the interactive time zone map or line up several zones at once with the meeting planner.