Brazil to United Kingdom
+4hBrazil
BRTSOURCEUnited Kingdom
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
BRT and BST on the World Map
The map below highlights the BRT (Brasilia Time) and BST (Greenwich Mean Time) timezone regions across the globe.
BRT – Brasilia Time
UTC-03:00Brasilia Time (BRT) is the time zone for eastern Brazil, 3 hours behind UTC.
- •Brazil abolished daylight saving time in 2019.
- •São Paulo is the largest city in the Southern Hemisphere.
- •BRT is 2 hours ahead of EST.
- •Brazil spans four different time zones.
- •The B3 stock exchange in São Paulo operates on BRT.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
Understanding the +4h Gap: Brazil vs United Kingdom
Brazil runs on Brasilia Standard Time (BRT) at UTC-03:00. United Kingdom runs on British Summer Time (BST) at UTC+01:00, also currently on daylight saving time. That puts Brazil 4 hours ahead of United Kingdom — a difference of +4h at the current offsets.
In practice, when it is 9:00 AM in Brazil it is 1:00 PM in United Kingdom. Midnight in Brazil is 4:00 AM in United Kingdom.United Kingdom observes daylight saving time while Brazil does not, so the gap narrows or widens by an hour part of the year.
Brazil to United Kingdom time conversion table
| Brazil (BRT) | United Kingdom (BST) | Day |
|---|---|---|
| 12:00 AM | 4:00 AM | same day |
| 6:00 AM | 10:00 AM | same day |
| 7:00 AM | 11:00 AM | same day |
| 8:00 AM | 12:00 PM | same day |
| 9:00 AM | 1:00 PM | same day |
| 12:00 PM | 4:00 PM | same day |
| 3:00 PM | 7:00 PM | same day |
| 5:00 PM | 9:00 PM | same day |
| 6:00 PM | 10:00 PM | same day |
| 9:00 PM | 1:00 AM | next day |
Why people convert Brazil to United Kingdom time
- Scheduling a call from Brazil to United Kingdom: a 10:00 AM start in Brazil lands at 2:00 PM in United Kingdom, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Brazil and United Kingdom are inside the 9-to-5 working day between 9:00 AM and 1:00 PM BRT time (1:00 PM–5:00 PM BST). That is roughly 4 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Brazil is 12:00 AM in United Kingdom makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM BRT" is unambiguous; "3 PM" across a +4h gap is not.
- Block 9:00 AM–1:00 PM BRT as the recurring meeting window if you work primarily from Brazil and need United Kingdom colleagues present.
- United Kingdom: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
About BRT (Brasilia Time)
Brasilia Time (BRT) is the standard time in the most populous regions of Brazil, including São Paulo, Rio de Janeiro, and the capital Brasília. Brazil abolished daylight saving time in 2019, so BRT is now observed year-round in these regions. Brazil spans four time zones in total.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between Brazil and United Kingdom
Both Brazil and United Kingdom sit inside the 9 AM – 5 PM working day between 9:00 AM–1:00 PM BRT, which is 1:00 PM–5:00 PM BST. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Brazil and United Kingdom overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
Brazil is 4 hours ahead of United Kingdom (BRT UTC-03:00 → BST UTC+01:00). The shared working window is 9:00 AM–1:00 PM BRT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Brazil
Does not observe DST
United Kingdom
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Brazil and United Kingdom?
Brazil (BRT, UTC-03:00) is 4 hours ahead of United Kingdom (BST, UTC+01:00). The gap is currently +4h.
How do I convert Brazil time to United Kingdom time?
Add +4h to Brazil local time. For example, 9:00 AM in Brazil is 1:00 PM in United Kingdom.
What time is it in United Kingdom right now?
United Kingdom uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +4h offset from Brazil.
What is the best time to call United Kingdom from Brazil?
Call between 9:00 AM and 1:00 PM BRT — that maps to 1:00 PM–5:00 PM BST and keeps both parties inside the working day.
Which is ahead, Brazil or United Kingdom?
Brazil is 4 hours ahead of United Kingdom. When it is 12:00 PM in Brazil it is 4:00 PM in United Kingdom.
Do Brazil and United Kingdom use different time zones?
Brazil (Brazil) uses BRT at UTC-03:00, while United Kingdom (United Kingdom) uses BST at UTC+01:00. The IANA identifiers are America/Sao_Paulo and Europe/London.
Does daylight saving time affect the Brazil–United Kingdom difference?
Yes at the moment: United Kingdom is on daylight saving time and Brazil is not, so the +4h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Brazil's time zone?
BRT also covers São Paulo, Rio de Janeiro, Brasília, Belo Horizonte, Salvador, Fortaleza, Recife, Curitiba.
Which countries use BRT, Brazil's zone?
BRT is used in Brazil (eastern).
Is there a day difference between Brazil and United Kingdom?
Not normally. The +4h gap only pushes the date over for late-evening times.
What is the time difference between Brazil and United Kingdom?
United Kingdom is +4h from Brazil.
What timezone is Brazil in?
Brazil operates on its local timezone.
What timezone is United Kingdom in?
United Kingdom operates on its local timezone.
Which countries use BRT (Brasilia Time)?
BRT is used in Brazil (eastern).
Does BRT observe daylight saving time?
No, BRT does not observe daylight saving time and remains at UTC-03:00 year-round.
What are some interesting facts about BRT?
Brazil abolished daylight saving time in 2019. São Paulo is the largest city in the Southern Hemisphere.
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in Brazil, what time is it in United Kingdom?
When it is 12:00 AM (midnight) in Brazil (BRT), it is +4h later in United Kingdom (GMT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Brazil time conversions
- brazil to sao paulo
- brazil to brt
- brazil to new york
- brazil to london
- brazil to dubai
- brazil to tokyo
- brazil to singapore
- brazil to sydney
- brazil to los angeles
- brazil to paris
- brazil to delhi
- brazil to mumbai
- brazil to berlin
- brazil to hong kong
- brazil to toronto
- brazil to kathmandu
- new york to brazil
- london to brazil
- dubai to brazil
- tokyo to brazil
- singapore to brazil
- sydney to brazil
- los angeles to brazil
- paris to brazil
- delhi to brazil
- mumbai to brazil
- berlin to brazil
- hong kong to brazil
- toronto to brazil
- kathmandu to brazil
See every conversion from Brazil →·See every conversion from United Kingdom →