IST to BST Converter

It takes three quick steps:

1. Click the IST field on the left and pick the time you want to convert.
2. The matching BST time updates on the right automatically — there’s no button to press.
3. Need a different day? Click the date field and the result follows, rolling over if it crosses midnight.

There is no time difference. IST and BST share the same UTC offset (UTC+1), so the two clocks always read exactly the same.

Right now the time in British Summer Time (BST) is Monday, June 29, 2026 · 6:53:59 PM. It ticks every second, so you’re always looking at the live BST clock.

And in Irish Standard Time (IST), it’s currently Monday, June 29, 2026 · 6:53:59 PM. Compare the two and the match is easy to see.

For example, a 9:00 AM IST meeting takes place at 9:00 AM BST. The trick is to aim for a slot that lands inside normal working hours on both sides. Once you’ve found a time, hit Share on the converter to copy a link with the time built in — easy to send to a colleague. Juggling three or more zones? The meeting planner highlights the hours that overlap for everyone.

The labels IST and BST are fixed offsets, so the result on this page is always exact. Both regions move their clocks for daylight saving on roughly the same weekends, so the match usually holds steady right through the year.

We don’t guess. IST and BST times are worked out from the official IANA time zone database, the trusted standard that operating systems use worldwide. Because daylight-saving rules and regional offsets do change over time, we track those updates rather than relying on a fixed number — which is exactly where many converters slip up.