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).

PET to Osaka

+14h

PET

PETSOURCE

UTC-05:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Osaka

JST

Japan · UTC+09:00

HH02

MM00

(next day)02:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

PET

Osaka

12:00 AM

2:00 PM

2:00 AM

4:00 PM

4:00 AM

6:00 PM

6:00 AM

8:00 PM

8:00 AM

10:00 PM

10:00 AM

12:00 AM+1

12:00 PM

2:00 AM+1

2:00 PM

4:00 AM+1

4:00 PM

6:00 AM+1

6:00 PM

8:00 AM+1

8:00 PM

10:00 AM+1

10:00 PM

12:00 PM+1

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

PET and JST on the World Map

The map below highlights the PET (Peru Time) and JST (Japan Standard Time) timezone regions across the globe.

PET Zone

→

JST Zone

Explore all world timezones interactively →

PET – Peru Time

UTC-05:00

Peru Time (PET) is the standard time for Peru, 5 hours behind UTC.

Countries in PET

Peru

Major Cities in PET

LimaArequipaTrujilloCuscoCallao

Key Facts about PET

•Peru does not observe daylight saving time.
•PET is the same offset as EST (UTC-05:00).
•Lima is the 5th largest city in the Americas.

Daylight Saving:No – UTC-05:00 year-round

Learn more about PET on Wikipedia

JST – Japan Standard Time

UTC+09:00

Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.

Countries in JST

Japan

Major Cities in JST

TokyoOsakaYokohamaNagoyaSapporoKyotoKobeFukuokaHiroshima

Key Facts about JST

•Japan does not observe daylight saving time.
•Tokyo is the most populous metropolitan area in the world.
•The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
•JST is 14 hours ahead of EST and 9 hours ahead of GMT.

Daylight Saving:No – UTC+09:00 year-round

Learn more about JST on Wikipedia

About Osaka

Wikipedia

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.

Population:2.8 million

Metro:19 million

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

Currency:JPY (¥)

Stock Exchange:OSE (Osaka Exchange - derivatives)

Key Landmarks

Osaka CastleDotonboriUniversal Studios JapanShitennoji TempleUmeda Sky Building

Did You Know?

Osaka Castle was originally built in 1583 and has been rebuilt several times.

Learn more about JST timezone →

Understanding the +14h Gap: PET vs Osaka

PET runs on Peru Time (PET) at UTC-05:00. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts PET 14 hours ahead of Osaka — a difference of +14h at the current offsets.

In practice, when it is 9:00 AM in PET it is 11:00 PM in Osaka. Midnight in PET is 2:00 PM in Osaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.

PET to Osaka time conversion table

PET (PET)	Osaka (JST)	Day
12:00 AM	2:00 PM	same day
6:00 AM	8:00 PM	same day
7:00 AM	9:00 PM	same day
8:00 AM	10:00 PM	same day
9:00 AM	11:00 PM	same day
12:00 PM	2:00 AM	next day
3:00 PM	5:00 AM	next day
5:00 PM	7:00 AM	next day
6:00 PM	8:00 AM	next day
9:00 PM	11:00 AM	next day

Why people convert PET to Osaka time

Scheduling a call from PET to Osaka: a 10:00 AM start in PET lands at 12:00 AM in Osaka the next day, so you can confirm the slot without doing the arithmetic yourself.
Handling a +14h gap: PET and Osaka 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 Osaka is 11:00 PM in PET.
Booking travel or deliveries: tracking Osaka local time against PET keeps pickup windows and arrival estimates honest across the +14h offset.

Always state the zone abbreviation, not just the hour. "3:00 PM PET" 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 PET takes the early slot, the next week Osaka does.

About PET (Peru Time)

Peru Time (PET) is the time zone used throughout Peru. Peru does not observe daylight saving time. PET shares the same offset as EST (UTC-05:00). Lima, the capital, is the economic center of Peru.

About JST (Japan Standard Time)

Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.

Best time to call between PET and Osaka

With a +14h offset there is no overlap inside a normal 9 AM – 5 PM day. Osaka opens at 9:00 AM JST, which is 11:00 PM in PET, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

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

PET is 14 hours ahead of Osaka (PET UTC-05:00 → JST UTC+09:00). 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 PET and Osaka?

PET (PET, UTC-05:00) is 14 hours ahead of Osaka (JST, UTC+09:00). The gap is currently +14h.

How do I convert PET time to Osaka time?

Add +14h to PET local time. For example, 9:00 AM in PET is 11:00 PM in Osaka.

What time is it in Osaka right now?

Osaka uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +14h offset from PET.

What is the best time to call Osaka from PET?

There is no shared working-hours window because of the +14h gap. The closest option is 1:00 PM in PET, which is 3:00 AM in Osaka.

Which is ahead, PET or Osaka?

PET is 14 hours ahead of Osaka. When it is 12:00 PM in PET it is 2:00 AM in Osaka.

Do PET and Osaka use different time zones?

PET uses PET at UTC-05:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are America/Lima and Asia/Tokyo.

Does daylight saving time affect the PET–Osaka difference?

Neither zone observes daylight saving time, so the +14h offset between PET and Osaka is fixed all year.

Which other cities share PET's time zone?

PET also covers Lima, Arequipa, Trujillo, Cusco, Callao.

Which countries use PET, PET's zone?

PET is used in Peru.

Is there a day difference between PET and Osaka?

Sometimes. The +14h gap is large enough that 8:00 PM or later in PET already falls on the next day in Osaka.

What is the time difference between PET and Osaka?

Osaka is +14h from PET.

What timezone is PET in?

PET operates on its local timezone.

What timezone is Osaka in?

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.