Convert time from BRT to GMT. Enter any time to see the equivalent GMT time, compare current BRT and GMT times side by side, and find overlapping business hours for calls and meetings.
Use this BRT to GMT converter to compare Brazil and United Kingdom time, check the 3 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM BRT / 12:00 PM GMT.
Converting between Brasilia Time and Greenwich Mean 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 Brasilia Time (UTC -3) that you want to convert. Hit "Now" to load the current brt time instantly, or use "+1h" to step forward and compare.
The equivalent Greenwich Mean Time (UTC +0) time appears immediately. Since gmt is 3 hours ahead of brt, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the gmt 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 Brazil suggests 9:00 AM brt, that's 12:00 PM gmt. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night brt times can land on a different date in gmt 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 brt–gmt 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 brt. Convert the event time to gmt so you know exactly when to tune in — with a 3 hours difference, a morning event in Brazil falls during work hours in United Kingdom.
Quick-reference conversion table covering every hour of the day at a glance.
Brasilia Time to Greenwich Mean Time full day schedule
| Brasilia Time | Greenwich Mean Time |
|---|---|
| 12:00 AM |
3:00 AM
|
| 1:00 AM |
4:00 AM
|
| 2:00 AM |
5:00 AM
|
| 3:00 AM |
6:00 AM
|
| 4:00 AM |
7:00 AM
|
| 5:00 AM |
8:00 AM
|
| 6:00 AM |
9:00 AM
|
| 7:00 AM |
10:00 AM
|
| 8:00 AM |
11:00 AM
|
| 9:00 AM |
12:00 PM
|
| 10:00 AM |
1:00 PM
|
| 11:00 AM |
2:00 PM
|
| 12:00 PM |
3:00 PM
|
| 1:00 PM |
4:00 PM
|
| 2:00 PM |
5:00 PM
|
| 3:00 PM |
6:00 PM
|
| 4:00 PM |
7:00 PM
|
| 5:00 PM |
8:00 PM
|
| 6:00 PM |
9:00 PM
|
| 7:00 PM |
10:00 PM
|
| 8:00 PM |
11:00 PM
|
| 9:00 PM |
12:00 AM
(next day)
|
| 10:00 PM |
1:00 AM
(next day)
|
| 11:00 PM |
2:00 AM
(next day)
|
UK / Ireland / Iceland / Portugal / West Africa. Business hours 9 AM – 5:30 PM GMT typically. Note: London is on GMT in winter, BST (GMT+1) in summer — but "GMT" gets used loosely all year in scheduling contexts. Financial-services London anchors the European trading day.
Explore more brt 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 Greenwich Mean Time. Use these pages when scheduling with United Kingdom from a different region.
