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).

São Paulo to Honolulu

-7h

São Paulo

BRTSOURCE

Brazil · UTC-03:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Honolulu

HST

USA · UTC-10:00

HH05

MM00

05:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

São Paulo

Honolulu

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.

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

About São Paulo

Wikipedia

São Paulo operates on Brasília Time (BRT), UTC-3. As South America's largest financial center, São Paulo's B3 exchange is the Americas' second-largest.

Population:12.4 million

Metro:22.4 million

Business Hours:9:00 AM - 6:00 PM BRT

Currency:BRL (R$)

Stock Exchange:B3 (Brasil Bolsa Balcão)

Key Landmarks

Paulista AvenueIbirapuera ParkSão Paulo CathedralMASPPinacoteca

Did You Know?

The city has more helicopters than any other city in the world due to traffic congestion.

Learn more about BRT timezone →

About Honolulu

Wikipedia

Honolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.

Population:350,000

Metro:1 million

Business Hours:8:00 AM - 5:00 PM HST

Currency:USD ($)

Key Landmarks

Waikiki BeachDiamond HeadPearl HarborIolani PalaceHanauma Bay

Did You Know?

Pearl Harbor memorial receives over 2 million visitors annually.

Learn more about HST timezone →

São Paulo to Honolulu Time Difference – Complete Guide

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

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

São Paulo to Honolulu time conversion table

São Paulo (BRT)	Honolulu (HST)	Day
12:00 AM	5:00 PM	previous day
6:00 AM	11:00 PM	previous day
7:00 AM	12:00 AM	same day
8:00 AM	1:00 AM	same day
9:00 AM	2:00 AM	same day
12:00 PM	5:00 AM	same day
3:00 PM	8:00 AM	same day
5:00 PM	10:00 AM	same day
6:00 PM	11:00 AM	same day
9:00 PM	2:00 PM	same day

Why people convert São Paulo to Honolulu time

Scheduling a call from São Paulo to Honolulu: a 10:00 AM start in São Paulo lands at 3:00 AM in Honolulu, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both São Paulo and Honolulu 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 Honolulu local time against São Paulo 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 São Paulo and need Honolulu 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 São Paulo and Honolulu

Both São Paulo and Honolulu 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

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

São Paulo is 7 hours behind Honolulu (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 São Paulo and Honolulu?

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

How do I convert São Paulo time to Honolulu time?

Add -7h to São Paulo local time. For example, 9:00 AM in São Paulo is 2:00 AM in Honolulu.

What time is it in Honolulu right now?

Honolulu 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 São Paulo.

What is the best time to call Honolulu from São Paulo?

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, São Paulo or Honolulu?

São Paulo is 7 hours behind Honolulu. When it is 12:00 PM in São Paulo it is 5:00 AM in Honolulu.

Do São Paulo and Honolulu use different time zones?

São Paulo (Brazil) uses BRT at UTC-03:00, while Honolulu (USA) uses HST at UTC-10:00. The IANA identifiers are America/Sao_Paulo and Pacific/Honolulu.

Does daylight saving time affect the São Paulo–Honolulu difference?

Neither zone observes daylight saving time, so the -7h offset between São Paulo and Honolulu is fixed all year.

Which other cities share São Paulo's time zone?

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

Which countries use BRT, São Paulo's zone?

BRT is used in Brazil (eastern).

Is there a day difference between São Paulo and Honolulu?

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

What is the time difference between São Paulo and Honolulu?

Honolulu is -7h from São Paulo.

What timezone is São Paulo in?

São Paulo operates on Brasília Time (BRT), UTC-3. As South America's largest financial center, São Paulo's B3 exchange is the Americas' second-largest.

What timezone is Honolulu in?

Honolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.

What are the business hours in São Paulo?

Standard business hours in São Paulo are 9:00 AM - 6:00 PM BRT.

What are the business hours in Honolulu?

Standard business hours in Honolulu are 8:00 AM - 5:00 PM HST.

What is the best time to schedule a call between São Paulo and Honolulu?

The best overlap for a call is when both cities are in business hours. São Paulo works 9:00 AM - 6:00 PM BRT and Honolulu works 8:00 AM - 5:00 PM HST (-7h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in São Paulo and Honolulu?

São Paulo uses BRL (R$) while Honolulu uses USD ($). Check current exchange rates when planning travel or business between these cities.

How do São Paulo and Honolulu compare in size?

São Paulo has a population of approximately 12.4 million (metro: 22.4 million), while Honolulu has approximately 350,000 (metro: 1 million).

What are the major landmarks in São Paulo and Honolulu?

São Paulo is known for Paulista Avenue, Ibirapuera Park, São Paulo Cathedral. Honolulu is famous for Waikiki Beach, Diamond Head, Pearl Harbor.

Do São Paulo and Honolulu have stock exchanges?

Yes. São Paulo has the B3 (Brasil Bolsa Balcão) and Honolulu has the N/A (Uses NYSE/NASDAQ). The -7h time difference affects trading hour overlaps between these exchanges.