Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

BRT to EDT

-1h

BRT

BRTSOURCE

UTC-03:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

EDT

UTC-04:00☀ DST active

HH11

MM00

11:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

BRT

EDT

12:00 AM

11:00 PM-1

2:00 AM

1:00 AM

4:00 AM

3:00 AM

6:00 AM

5:00 AM

8:00 AM

7:00 AM

10:00 AM

9:00 AM

12:00 PM

11:00 AM

2:00 PM

1:00 PM

4:00 PM

3:00 PM

6:00 PM

5:00 PM

8:00 PM

7:00 PM

10:00 PM

9:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

BRT and EDT on the World Map

The map below highlights the BRT (Brasilia Time) and EDT (Eastern Daylight Time) timezone regions across the globe.

BRT Zone

→

EDT Zone

Explore all world timezones interactively →

BRT – Brasilia Time

UTC-03:00

Brasilia Time (BRT) is the time zone for eastern Brazil, 3 hours behind UTC.

Countries in BRT

Brazil (eastern)

Major Cities in BRT

São PauloRio de JaneiroBrasíliaBelo HorizonteSalvadorFortalezaRecifeCuritiba

Key Facts about BRT

•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.

Daylight Saving:No – UTC-03:00 year-round

Learn more about BRT on Wikipedia

EDT – Eastern Daylight Time

UTC-04:00

Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.

Countries in EDT

United States (Eastern)Canada (Ontario, Quebec)BahamasHaitiTurks and Caicos

Major Cities in EDT

New York CityWashington D.C.TorontoMiamiPhiladelphiaAtlantaBostonMontreal

Key Facts about EDT

•EDT is observed from the second Sunday of March to the first Sunday of November.
•During EDT, the US East Coast is only 4 hours behind London (instead of 5).
•Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.

Daylight Saving:Yes – switches to EST

Learn more about EDT on Wikipedia

BRT to EDT Time Difference – Complete Guide

BRT runs on Brasilia Time (BRT) at UTC-03:00. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts BRT 1 hour behind EDT — a difference of -1h at the current offsets.

In practice, when it is 9:00 AM in BRT it is 8:00 AM in EDT. Midnight in BRT is 11:00 PM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

BRT to EDT time conversion table

BRT (BRT)	EDT (EDT)	Day
12:00 AM	11:00 PM	previous day
6:00 AM	5:00 AM	same day
7:00 AM	6:00 AM	same day
8:00 AM	7:00 AM	same day
9:00 AM	8:00 AM	same day
12:00 PM	11:00 AM	same day
3:00 PM	2:00 PM	same day
5:00 PM	4:00 PM	same day
6:00 PM	5:00 PM	same day
9:00 PM	8:00 PM	same day

Why people convert BRT to EDT time

Scheduling a call from BRT to EDT: a 10:00 AM start in BRT lands at 9:00 AM in EDT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both BRT and EDT are inside the 9-to-5 working day between 10:00 AM and 5:00 PM BRT time (9:00 AM–4:00 PM EDT). That is roughly 7 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in BRT is 7:00 PM in EDT 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 -1h gap is not.
Block 10:00 AM–5:00 PM BRT as the recurring meeting window if you work primarily from BRT and need EDT colleagues present.

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 EDT (Eastern Daylight Time)

Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.

Best time to call between BRT and EDT

Both BRT and EDT sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM BRT, which is 9:00 AM–4:00 PM EDT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

BRT and EDT share 7 hours of working-hours overlap (10:00 AM–5:00 PM BRT), so scheduling a live meeting is straightforward.

BRT is 1 hour behind EDT (BRT UTC-03:00 → EDT UTC-04:00). The shared working window is 10:00 AM–5:00 PM BRT. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

BRT

Does not observe DST

EDT

☀ Currently in DST

Standard: UTC-05:00 · DST: UTC-04:00

Clocks fall back on Sun, Nov 1, 2026

Learn More About Time

Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between BRT and EDT?

BRT (BRT, UTC-03:00) is 1 hour behind EDT (EDT, UTC-04:00). The gap is currently -1h.

How do I convert BRT time to EDT time?

Add -1h to BRT local time. For example, 9:00 AM in BRT is 8:00 AM in EDT.

What time is it in EDT right now?

EDT uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h offset from BRT.

What is the best time to call EDT from BRT?

Call between 10:00 AM and 5:00 PM BRT — that maps to 9:00 AM–4:00 PM EDT and keeps both parties inside the working day.

Which is behind, BRT or EDT?

BRT is 1 hour behind EDT. When it is 12:00 PM in BRT it is 11:00 AM in EDT.

Does daylight saving time affect the BRT–EDT difference?

Neither zone observes daylight saving time, so the -1h offset between BRT and EDT is fixed all year.

Which other cities share BRT's time zone?

BRT also covers São Paulo, Rio de Janeiro, Brasília, Belo Horizonte, Salvador, Fortaleza, Recife, Curitiba.

Which countries use BRT, BRT's zone?

BRT is used in Brazil (eastern).

Is there a day difference between BRT and EDT?

Not normally. The -1h gap only pushes the date over the previous day.

What is the time difference between BRT and EDT?

EDT is -1h from BRT.

What timezone is BRT in?

BRT operates on its local timezone.

What timezone is EDT in?

EDT 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 EDT timezone?

Major cities in the EDT timezone include New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.

What is the UTC offset for EDT?

Eastern Daylight Time (EDT) is at UTC-04:00. During daylight saving time, it shifts to EST.

What should I know about the EDT timezone?

EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).