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).

Dubai to HST

-14h

Dubai

GSTSOURCE

UAE · UTC+04:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

HST

UTC-10:00

HH10

MM00

(previous day)22:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Dubai

HST

12:00 AM

10:00 AM-1

2:00 AM

12:00 PM-1

4:00 AM

2:00 PM-1

6:00 AM

4:00 PM-1

8:00 AM

6:00 PM-1

10:00 AM

8:00 PM-1

12:00 PM

10:00 PM-1

2:00 PM

12:00 AM

4:00 PM

2:00 AM

6:00 PM

4:00 AM

8:00 PM

6:00 AM

10:00 PM

8:00 AM

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

GST and HST on the World Map

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

GST Zone

→

HST Zone

Explore all world timezones interactively →

GST – Gulf Standard Time

UTC+04:00

Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.

Countries in GST

UAEOmanGeorgiaAzerbaijanMauritius

Major Cities in GST

DubaiAbu DhabiMuscatBakuTbilisi

Key Facts about GST

•Dubai uses GST year-round with no daylight saving time.
•GST is 9 hours ahead of EST and 4 hours ahead of GMT.
•The Dubai Financial Market (DFM) operates on GST.

Daylight Saving:No – UTC+04:00 year-round

Learn more about GST 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 Dubai

Wikipedia

Dubai operates on Gulf Standard Time (GST), 4 hours ahead of GMT. Dubai's position between Europe and Asia makes it a strategic hub for international business.

Population:3.5 million

Metro:4.1 million

Business Hours:8:00 AM - 6:00 PM GST

Currency:AED (د.إ)

Stock Exchange:DFM (Dubai Financial Market)

Key Landmarks

Burj KhalifaPalm JumeirahBurj Al ArabDubai MallDubai Frame

Did You Know?

Dubai has no income tax, making it a major hub for international business.

Learn more about GST timezone →

Dubai vs HST: Offsets, DST and Best Call Times

Dubai runs on Gulf Standard Time (GST) at UTC+04:00. HST runs on Hawaii Standard Time (HST) at UTC-10:00. That puts Dubai 14 hours behind HST — a difference of -14h at the current offsets.

In practice, when it is 9:00 AM in Dubai it is 7:00 PM in HST on the previous day. Midnight in Dubai is 10:00 AM in HST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Dubai to HST time conversion table

Dubai (GST)	HST (HST)	Day
12:00 AM	10:00 AM	previous day
6:00 AM	4:00 PM	previous day
7:00 AM	5:00 PM	previous day
8:00 AM	6:00 PM	previous day
9:00 AM	7:00 PM	previous day
12:00 PM	10:00 PM	previous day
3:00 PM	1:00 AM	same day
5:00 PM	3:00 AM	same day
6:00 PM	4:00 AM	same day
9:00 PM	7:00 AM	same day

Why people convert Dubai to HST time

Scheduling a call from Dubai to HST: a 10:00 AM start in Dubai lands at 8:00 PM in HST the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -14h gap: Dubai and HST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in HST is 7:00 PM in Dubai.
Coordinating a Dubai-based team with HST contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.

Always state the zone abbreviation, not just the hour. "3:00 PM GST" is unambiguous; "3 PM" across a -14h gap is not.
With a -14h gap there is no shared 9-to-5 window, so alternate the early start: one week Dubai takes the early slot, the next week HST does.

About GST (Gulf Standard Time)

Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.

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 Dubai and HST

With a -14h offset there is no overlap inside a normal 9 AM – 5 PM day. HST opens at 9:00 AM HST, which is 7:00 PM in Dubai, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Dubai and HST have no shared working hours because of the -14h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Dubai is 14 hours behind HST (GST UTC+04:00 → HST UTC-10:00). There is no shared 9-to-5 window, so plan around an early or late slot. 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 Dubai and HST?

Dubai (GST, UTC+04:00) is 14 hours behind HST (HST, UTC-10:00). The gap is currently -14h.

How do I convert Dubai time to HST time?

Add -14h to Dubai local time. For example, 9:00 AM in Dubai is 7:00 PM in HST (previous day).

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 -14h offset from Dubai.

What is the best time to call HST from Dubai?

There is no shared working-hours window because of the -14h gap. The closest option is 1:00 PM in Dubai, which is 11:00 PM in HST.

Which is behind, Dubai or HST?

Dubai is 14 hours behind HST. When it is 12:00 PM in Dubai it is 10:00 PM in HST.

Do Dubai and HST use different time zones?

Dubai (UAE) uses GST at UTC+04:00, while HST uses HST at UTC-10:00. The IANA identifiers are Asia/Dubai and Pacific/Honolulu.

Does daylight saving time affect the Dubai–HST difference?

Neither zone observes daylight saving time, so the -14h offset between Dubai and HST is fixed all year.

Which other cities share Dubai's time zone?

GST also covers Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.

Which countries use GST, Dubai's zone?

GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.

Is there a day difference between Dubai and HST?

Sometimes. The -14h gap is large enough that 8:00 PM or later in Dubai already falls on the in HST.

What is the time difference between Dubai and HST?

HST is -14h from Dubai.

What timezone is Dubai in?

Dubai operates on Gulf Standard Time (GST), 4 hours ahead of GMT. Dubai's position between Europe and Asia makes it a strategic hub for international business.