Инструменты Intosoft

BRT to HST

-7h

BRT

BRTSOURCE
UTC-03:00
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

HST

HST
UTC-10:00
HH05
:
MM00
  
05:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
BRT
HST
12:00 AM
5:00 PM-1
2:00 AM
7:00 PM-1
4:00 AM
9:00 PM-1
6:00 AM
11:00 PM-1
8:00 AM
1:00 AM
10:00 AM
3:00 AM
12:00 PM
5:00 AM
2:00 PM
7:00 AM
4:00 PM
9:00 AM
6:00 PM
11:00 AM
8:00 PM
1:00 PM
10:00 PM
3:00 PM

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

BRT and HST on the World Map

The map below highlights the BRT (Brasilia Time) and HST (Hawaii Standard Time) timezone regions across the globe.

BRTHSTSão PauloRio de JaneiroBrasíliaBelo HorizonteHonoluluHiloKailuaPearl City
BRT Zone
→
HST 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

HST – Hawaii Standard Time

UTC-10:00

Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.

Countries in HST
United States (Hawaii)
Major Cities in HST
HonoluluHiloKailuaPearl CityKapolei
Key Facts about HST
  • •Hawaii does not observe daylight saving time.
  • •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
  • •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
Daylight Saving:No – UTC-10:00 year-round
Learn more about HST on Wikipedia

BRT to HST Time Difference – Complete Guide

BRT runs on Brasilia Time (BRT) at UTC-03:00. HST runs on Hawaii Standard Time (HST) at UTC-10:00. That puts BRT 7 hours behind HST — a difference of -7h at the current offsets.

In practice, when it is 9:00 AM in BRT it is 2:00 AM in HST. Midnight in BRT is 5:00 PM in HST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

BRT to HST time conversion table

BRT (BRT)HST (HST)Day
12:00 AM5:00 PMprevious day
6:00 AM11:00 PMprevious day
7:00 AM12:00 AMsame day
8:00 AM1:00 AMsame day
9:00 AM2:00 AMsame day
12:00 PM5:00 AMsame day
3:00 PM8:00 AMsame day
5:00 PM10:00 AMsame day
6:00 PM11:00 AMsame day
9:00 PM2:00 PMsame day

Why people convert BRT to HST time

  • Scheduling a call from BRT to HST: a 10:00 AM start in BRT lands at 3:00 AM in HST, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both BRT and HST are inside the 9-to-5 working day between 4:00 PM and 5:00 PM BRT time (9:00 AM–10:00 AM HST). That is roughly 1 hours of usable overlap.
  • Booking travel or deliveries: tracking HST local time against BRT keeps pickup windows and arrival estimates honest across the -7h offset.
  • Always state the zone abbreviation, not just the hour. "3:00 PM BRT" is unambiguous; "3 PM" across a -7h gap is not.
  • Block 4:00 PM–5:00 PM BRT as the recurring meeting window if you work primarily from BRT and need HST 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 HST (Hawaii Standard Time)

Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.

Best time to call between BRT and HST

Both BRT and HST sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM BRT, which is 9:00 AM–10:00 AM HST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

BRT and HST overlap for only 60 minutes (4:00 PM–5:00 PM BRT), so meetings have to be booked precisely.

BRT is 7 hours behind HST (BRT UTC-03:00 → HST UTC-10:00). The shared working window is 4:00 PM–5:00 PM BRT. Remember to re-check around daylight-saving transitions.

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 HST?

BRT (BRT, UTC-03:00) is 7 hours behind HST (HST, UTC-10:00). The gap is currently -7h.

How do I convert BRT time to HST time?

Add -7h to BRT local time. For example, 9:00 AM in BRT is 2:00 AM in HST.

What time is it in HST right now?

HST uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -7h offset from BRT.

What is the best time to call HST from BRT?

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

Which is behind, BRT or HST?

BRT is 7 hours behind HST. When it is 12:00 PM in BRT it is 5:00 AM in HST.

Does daylight saving time affect the BRT–HST difference?

Neither zone observes daylight saving time, so the -7h offset between BRT and HST 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 HST?

Not normally. The -7h gap only pushes the date over the previous day.

What is the time difference between BRT and HST?

HST is -7h from BRT.

What timezone is BRT in?

BRT operates on its local timezone.

What timezone is HST in?

HST 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 HST timezone?

Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.

What is the UTC offset for HST?

Hawaii Standard Time (HST) is at UTC-10:00.

What should I know about the HST timezone?

Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.

When is it midnight in BRT, what time is it in HST?

When it is 12:00 AM (midnight) in BRT (BRT), it is -7h later in HST (HST).

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