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.

Iran to PHT

+4h 30m

Iran

IRSTSOURCE

UTC+03:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

PHT

UTC+08:00

HH04

MM30

16:30 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Iran

PHT

12:00 AM

4:30 AM

2:00 AM

6:30 AM

4:00 AM

8:30 AM

6:00 AM

10:30 AM

8:00 AM

12:30 PM

10:00 AM

2:30 PM

12:00 PM

4:30 PM

2:00 PM

6:30 PM

4:00 PM

8:30 PM

6:00 PM

10:30 PM

8:00 PM

12:30 AM+1

10:00 PM

2:30 AM+1

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

IRST and PHT on the World Map

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

IRST Zone

→

PHT Zone

Explore all world timezones interactively →

IRST – Iran Standard Time

UTC+03:30

Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.

Countries in IRST

Iran

Major Cities in IRST

TehranIsfahanMashhadTabrizShirazKaraj

Key Facts about IRST

•IRST is one of only a few time zones with a 30-minute offset.
•Iran observes daylight saving time, switching to IRDT (UTC+04:30).
•Tehran has a metropolitan population of over 16 million.

Daylight Saving:Yes – switches to IRDT

Learn more about IRST on Wikipedia

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

Time Conversion Guide: Iran to PHT

Iran runs on Iran Standard Time (IRST) at UTC+03:30. PHT runs on Philippine Time (PHT) at UTC+08:00. That puts Iran 4 hours 30 minutes ahead of PHT — a difference of +4h 30m at the current offsets.

In practice, when it is 9:00 AM in Iran it is 1:30 PM in PHT. Midnight in Iran is 4:30 AM in PHT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Iran to PHT time conversion table

Iran (IRST)	PHT (PHT)	Day
12:00 AM	4:30 AM	same day
6:00 AM	10:30 AM	same day
7:00 AM	11:30 AM	same day
8:00 AM	12:30 PM	same day
9:00 AM	1:30 PM	same day
12:00 PM	4:30 PM	same day
3:00 PM	7:30 PM	same day
5:00 PM	9:30 PM	same day
6:00 PM	10:30 PM	same day
9:00 PM	1:30 AM	next day

Why people convert Iran to PHT time

Scheduling a call from Iran to PHT: a 10:00 AM start in Iran lands at 2:30 PM in PHT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Iran and PHT are inside the 9-to-5 working day between 9:00 AM and 12:30 PM IRST time (1:30 PM–5:00 PM PHT). That is roughly 3 hours 30 minutes of usable overlap.
Coordinating a Iran-based team with PHT 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 IRST" is unambiguous; "3 PM" across a +4h 30m gap is not.
Block 9:00 AM–12:30 PM IRST as the recurring meeting window if you work primarily from Iran and need PHT colleagues present.

About IRST (Iran Standard Time)

Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.

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.

Best time to call between Iran and PHT

Both Iran and PHT sit inside the 9 AM – 5 PM working day between 9:00 AM–12:30 PM IRST, which is 1:30 PM–5:00 PM PHT. That gives roughly 3 hours and 30 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Iran and PHT overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.

Iran is 4 hours 30 minutes ahead of PHT (IRST UTC+03:30 → PHT UTC+08:00). The shared working window is 9:00 AM–12:30 PM IRST. 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 Iran and PHT?

Iran (IRST, UTC+03:30) is 4 hours 30 minutes ahead of PHT (PHT, UTC+08:00). The gap is currently +4h 30m.

How do I convert Iran time to PHT time?

Add +4h 30m to Iran local time. For example, 9:00 AM in Iran is 1:30 PM in PHT.

What time is it in PHT right now?

PHT uses PHT at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +4h 30m offset from Iran.

What is the best time to call PHT from Iran?

Call between 9:00 AM and 12:30 PM IRST — that maps to 1:30 PM–5:00 PM PHT and keeps both parties inside the working day.

Which is ahead, Iran or PHT?

Iran is 4 hours 30 minutes ahead of PHT. When it is 12:00 PM in Iran it is 4:30 PM in PHT.

Do Iran and PHT use different time zones?

Iran (Iran) uses IRST at UTC+03:30, while PHT uses PHT at UTC+08:00. The IANA identifiers are Asia/Tehran and Asia/Manila.

Does daylight saving time affect the Iran–PHT difference?

Neither zone observes daylight saving time, so the +4h 30m offset between Iran and PHT is fixed all year.

Which other cities share Iran's time zone?

IRST also covers Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.

Which countries use IRST, Iran's zone?

IRST is used in Iran.

Is there a day difference between Iran and PHT?

Not normally. The +4h 30m gap only pushes the date over for late-evening times.

What is the time difference between Iran and PHT?

PHT is +4h 30m from Iran.

What timezone is Iran in?

Iran operates on its local timezone.

What timezone is PHT in?

PHT operates on its local timezone.

Which countries use IRST (Iran Standard Time)?

IRST is used in Iran.

Does IRST observe daylight saving time?

Yes, IRST switches to IRDT during summer months.

What are some interesting facts about IRST?

IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).

Which cities are in the PHT timezone?

Major cities in the PHT timezone include Manila, Quezon City, Davao City, Cebu City, Zamboanga.

What is the UTC offset for PHT?

Philippine Time (PHT) is at UTC+08:00.

What should I know about the PHT timezone?

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.