Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Philippines to HST

-18h

Philippines

PHTSOURCE

UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

HST

UTC-10:00

HH06

MM00

(previous day)18:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Philippines

HST

12:00 AM

6:00 AM-1

2:00 AM

8:00 AM-1

4:00 AM

10:00 AM-1

6:00 AM

12:00 PM-1

8:00 AM

2:00 PM-1

10:00 AM

4:00 PM-1

12:00 PM

6:00 PM-1

2:00 PM

8:00 PM-1

4:00 PM

10:00 PM-1

6:00 PM

12:00 AM

8:00 PM

2:00 AM

10:00 PM

4:00 AM

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

PHT and HST on the World Map

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

PHT Zone

→

HST Zone

Explore all world timezones interactively →

PHT – Philippine Time

UTC+08:00

Philippine Time (PHT, UTC+08:00) is the time zone for the Philippines, 8 hours ahead of UTC.

Countries in PHT

Philippines

Major Cities in PHT

ManilaQuezon CityDavao CityCebu CityZamboanga

Key Facts about PHT

•Philippine Time does not observe daylight saving, so UTC+08:00 is fixed all year.
•PHT shares its offset with China, Hong Kong, Singapore and Malaysia.
•Manila is one of the largest outsourcing hubs in the world.
•The Philippines spans one time zone despite being an archipelago of over 7,600 islands.

Daylight Saving:No – UTC+08:00 year-round

Learn more about PHT 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

Time Conversion Guide: Philippines to HST

Philippines runs on Philippine Standard Time (PHT) at UTC+08:00. HST runs on Hawaii Standard Time (HST) at UTC-10:00. That puts Philippines 18 hours behind HST — a difference of -18h at the current offsets.

In practice, when it is 9:00 AM in Philippines it is 3:00 PM in HST on the previous day. Midnight in Philippines is 6:00 AM in HST. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Philippines to HST time conversion table

Philippines (PHT)	HST (HST)	Day
12:00 AM	6:00 AM	previous day
6:00 AM	12:00 PM	previous day
7:00 AM	1:00 PM	previous day
8:00 AM	2:00 PM	previous day
9:00 AM	3:00 PM	previous day
12:00 PM	6:00 PM	previous day
3:00 PM	9:00 PM	previous day
5:00 PM	11:00 PM	previous day
6:00 PM	12:00 AM	same day
9:00 PM	3:00 AM	same day

Why people convert Philippines to HST time

Scheduling a call from Philippines to HST: a 10:00 AM start in Philippines lands at 4:00 PM in HST the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -18h gap: Philippines 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 3:00 PM in Philippines.
Keeping family and friends in sync: knowing that 8:00 PM in Philippines is 2:00 AM in HST makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM PHT" is unambiguous; "3 PM" across a -18h gap is not.
With a -18h gap there is no shared 9-to-5 window, so alternate the early start: one week Philippines takes the early slot, the next week HST does.

About PHT (Philippine Time)

Philippine Time (PHT) is fixed at UTC+08:00 all year. The Philippines has not observed daylight saving time since 1978, apart from a brief trial in 1990. PHT shares its offset with China Standard Time, Hong Kong Time, Singapore Time, Malaysian Time and Australian Western Standard Time, which makes Manila a convenient bridge for scheduling across East and Southeast Asia. As one of the world's largest centres for business process outsourcing, Manila keeps overlapping hours with both Australia and, on early shifts, the United States, and its contact-centre schedules are usually planned around Manila local time.

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 Philippines and HST

With a -18h offset there is no overlap inside a normal 9 AM – 5 PM day. HST opens at 9:00 AM HST, which is 3:00 PM in Philippines, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Philippines and HST have no shared working hours because of the -18h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Philippines is 18 hours behind HST (PHT UTC+08:00 → 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 Philippines and HST?

Philippines (PHT, UTC+08:00) is 18 hours behind HST (HST, UTC-10:00). The gap is currently -18h.

How do I convert Philippines time to HST time?

Add -18h to Philippines local time. For example, 9:00 AM in Philippines is 3:00 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 -18h offset from Philippines.

What is the best time to call HST from Philippines?

There is no shared working-hours window because of the -18h gap. The closest option is 1:00 PM in Philippines, which is 7:00 PM in HST.

Which is behind, Philippines or HST?

Philippines is 18 hours behind HST. When it is 12:00 PM in Philippines it is 6:00 PM in HST.

Do Philippines and HST use different time zones?

Philippines (Philippines) uses PHT at UTC+08:00, while HST uses HST at UTC-10:00. The IANA identifiers are Asia/Manila and Pacific/Honolulu.

Does daylight saving time affect the Philippines–HST difference?

Neither zone observes daylight saving time, so the -18h offset between Philippines and HST is fixed all year.

Which other cities share Philippines's time zone?

PHT also covers Manila, Quezon City, Davao City, Cebu City, Zamboanga.

Which countries use PHT, Philippines's zone?

PHT is used in Philippines.

Is there a day difference between Philippines and HST?

Sometimes. The -18h gap is large enough that 8:00 PM or later in Philippines already falls on the in HST.

What is the time difference between Philippines and HST?

HST is -18h from Philippines.

What timezone is Philippines in?

Philippines operates on its local timezone.

What timezone is HST in?

HST operates on its local timezone.

Which countries use PHT (Philippine Time)?

PHT is used in Philippines.

Does PHT observe daylight saving time?

No, PHT does not observe daylight saving time and remains at UTC+08:00 year-round.

What are some interesting facts about PHT?

Philippine Time does not observe daylight saving, so UTC+08:00 is fixed all year. PHT shares its offset with China, Hong Kong, Singapore and Malaysia.