Use this RET to BST time converter to compare Réunion and United Kingdom time instantly. BST is 3 hours behind RET, so 9:00 AM RET becomes 6:00 AM BST and 5:00 PM RET becomes 2:00 PM BST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
Use this RET to BST converter to compare Réunion and United Kingdom time, check the 3 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 12:00 PM RET / 9:00 AM BST.
Converting between Reunion Time and British Summer Time means accounting for a 3 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Reunion Time (UTC +4) that you want to convert. Hit "Now" to load the current RET time instantly, or use "+1h" to step forward and compare.
The equivalent British Summer Time (UTC +1) time appears immediately. Since BST is 3 hours behind of RET, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the BST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
When someone in Réunion suggests 12:00 PM RET, that's 9:00 AM BST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night RET times can land on a different date in BST because of the 3 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the RET–BST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in RET. Convert the event time to BST so you know exactly when to tune in — with a 3 hours difference, a morning event in Réunion falls during work hours in United Kingdom.
Quick-reference conversion table covering every hour of the day at a glance.
Reunion Time to British Summer Time full day schedule
| Reunion Time | British Summer Time |
|---|---|
| 12:00 AM |
9:00 PM
(previous day)
|
| 1:00 AM |
10:00 PM
(previous day)
|
| 2:00 AM |
11:00 PM
(previous day)
|
| 3:00 AM |
12:00 AM
|
| 4:00 AM |
1:00 AM
|
| 5:00 AM |
2:00 AM
|
| 6:00 AM |
3:00 AM
|
| 7:00 AM |
4:00 AM
|
| 8:00 AM |
5:00 AM
|
| 9:00 AM |
6:00 AM
|
| 10:00 AM |
7:00 AM
|
| 11:00 AM |
8:00 AM
|
| 12:00 PM |
9:00 AM
|
| 1:00 PM |
10:00 AM
|
| 2:00 PM |
11:00 AM
|
| 3:00 PM |
12:00 PM
|
| 4:00 PM |
1:00 PM
|
| 5:00 PM |
2:00 PM
|
| 6:00 PM |
3:00 PM
|
| 7:00 PM |
4:00 PM
|
| 8:00 PM |
5:00 PM
|
| 9:00 PM |
6:00 PM
|
| 10:00 PM |
7:00 PM
|
| 11:00 PM |
8:00 PM
|
UK / Ireland summer offset (last Sunday of March to last Sunday of October) — UTC+1, same as CET. During BST, London aligns with continental European working hours rather than the standard 1-hour gap. Winter reverts to GMT (UTC+0).
Explore more RET conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Find the time difference from any major zone into British Summer Time. Use these pages when scheduling with United Kingdom from a different region.
