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).

Kathmandu to Osaka

+3h 15m

Kathmandu

NPTSOURCE

Nepal · UTC+05:45

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Osaka

JST

Japan · UTC+09:00

HH03

MM15

15:15 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Kathmandu

Osaka

12:00 AM

3:15 AM

2:00 AM

5:15 AM

4:00 AM

7:15 AM

6:00 AM

9:15 AM

8:00 AM

11:15 AM

10:00 AM

1:15 PM

12:00 PM

3:15 PM

2:00 PM

5:15 PM

4:00 PM

7:15 PM

6:00 PM

9:15 PM

8:00 PM

11:15 PM

10:00 PM

1:15 AM+1

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

NPT and JST on the World Map

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

NPT Zone

→

JST Zone

Explore all world timezones interactively →

NPT – Nepal Time

UTC+05:45

Nepal Time (NPT, UTC+05:45) is the time zone for Nepal — one of the few offsets in the world set on a 45-minute increment.

Countries in NPT

Nepal

Major Cities in NPT

KathmanduPokharaLalitpurBharatpurBiratnagar

Key Facts about NPT

•Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour.
•The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.
•Nepal does not observe daylight saving time.
•Nepal is 15 minutes ahead of India, despite sharing a long open border.

Daylight Saving:No – UTC+05:45 year-round

Learn more about NPT 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 Kathmandu

Wikipedia

Kathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.

Population:1.4 million

Metro:3.0 million

Business Hours:10:00 AM - 5:00 PM NPT

Currency:NPR (रू)

Stock Exchange:NEPSE (Nepal Stock Exchange)

Key Landmarks

Boudhanath StupaSwayambhunathDurbar SquarePashupatinath TempleGarden of Dreams

Did You Know?

Nepal Time (NPT) is one of only three timezones offset by 45 minutes (UTC+5:45).

Learn more about NPT timezone →

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 →

Kathmandu vs Osaka: Offsets, DST and Best Call Times

Kathmandu runs on Nepal Time (NPT) at UTC+05:45. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts Kathmandu 3 hours 15 minutes ahead of Osaka — a difference of +3h 15m at the current offsets.

In practice, when it is 9:00 AM in Kathmandu it is 12:15 PM in Osaka. Midnight in Kathmandu is 3:15 AM in Osaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Kathmandu to Osaka time conversion table

Kathmandu (NPT)	Osaka (JST)	Day
12:00 AM	3:15 AM	same day
6:00 AM	9:15 AM	same day
7:00 AM	10:15 AM	same day
8:00 AM	11:15 AM	same day
9:00 AM	12:15 PM	same day
12:00 PM	3:15 PM	same day
3:00 PM	6:15 PM	same day
5:00 PM	8:15 PM	same day
6:00 PM	9:15 PM	same day
9:00 PM	12:15 AM	next day

Why people convert Kathmandu to Osaka time

Scheduling a call from Kathmandu to Osaka: a 10:00 AM start in Kathmandu lands at 1:15 PM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Kathmandu and Osaka are inside the 9-to-5 working day between 9:00 AM and 1:45 PM NPT time (12:15 PM–5:00 PM JST). That is roughly 4 hours 45 minutes of usable overlap.
Watching a live event or market open: Kathmandu viewers need 12:15 PM in Osaka to catch a 9:00 AM start there, and 8:45 PM if the event is anchored to Kathmandu.

Always state the zone abbreviation, not just the hour. "3:00 PM NPT" is unambiguous; "3 PM" across a +3h 15m gap is not.
Block 9:00 AM–1:45 PM NPT as the recurring meeting window if you work primarily from Kathmandu and need Osaka colleagues present.

About NPT (Nepal Time)

Nepal Time (NPT) runs at UTC+05:45, one of only a handful of time zones worldwide that are not a whole or half hour from UTC. Nepal set its offset to 5 hours 45 minutes ahead of UTC in 1986 to mark the country's position between the 75°E and 90°E meridians; Kathmandu's solar time sits just over 5 hours 41 minutes ahead of Greenwich, so the 45-minute offset tracks the sun more closely than either 5:30 or 6:00 would. Nepal does not observe daylight saving time, so NPT is fixed all year. The offset makes Nepal 15 minutes ahead of India Standard Time (UTC+05:30) and 2 hours 15 minutes ahead of Dubai (UTC+04:00).

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 Kathmandu and Osaka

Both Kathmandu and Osaka sit inside the 9 AM – 5 PM working day between 9:00 AM–1:45 PM NPT, which is 12:15 PM–5:00 PM JST. That gives roughly 4 hours and 45 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Kathmandu and Osaka overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.

Kathmandu is 3 hours 15 minutes ahead of Osaka (NPT UTC+05:45 → JST UTC+09:00). The shared working window is 9:00 AM–1:45 PM NPT. 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 Kathmandu and Osaka?

Kathmandu (NPT, UTC+05:45) is 3 hours 15 minutes ahead of Osaka (JST, UTC+09:00). The gap is currently +3h 15m.

How do I convert Kathmandu time to Osaka time?

Add +3h 15m to Kathmandu local time. For example, 9:00 AM in Kathmandu is 12:15 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 +3h 15m offset from Kathmandu.

What is the best time to call Osaka from Kathmandu?

Call between 9:00 AM and 1:45 PM NPT — that maps to 12:15 PM–5:00 PM JST and keeps both parties inside the working day.

Which is ahead, Kathmandu or Osaka?

Kathmandu is 3 hours 15 minutes ahead of Osaka. When it is 12:00 PM in Kathmandu it is 3:15 PM in Osaka.

Do Kathmandu and Osaka use different time zones?

Kathmandu (Nepal) uses NPT at UTC+05:45, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Asia/Kathmandu and Asia/Tokyo.

Does daylight saving time affect the Kathmandu–Osaka difference?

Neither zone observes daylight saving time, so the +3h 15m offset between Kathmandu and Osaka is fixed all year.

Which other cities share Kathmandu's time zone?

NPT also covers Kathmandu, Pokhara, Lalitpur, Bharatpur, Biratnagar.

Which countries use NPT, Kathmandu's zone?

NPT is used in Nepal.

Is there a day difference between Kathmandu and Osaka?

Not normally. The +3h 15m gap only pushes the date over for late-evening times.

What is the time difference between Kathmandu and Osaka?

Osaka is +3h 15m from Kathmandu.

What timezone is Kathmandu in?

Kathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.

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.

What are the business hours in Kathmandu?

Standard business hours in Kathmandu are 10:00 AM - 5:00 PM NPT.

What are the business hours in Osaka?

Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.

What is the best time to schedule a call between Kathmandu and Osaka?

The best overlap for a call is when both cities are in business hours. Kathmandu works 10:00 AM - 5:00 PM NPT and Osaka works 9:00 AM - 6:00 PM JST (+3h 15m difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Kathmandu and Osaka?

Kathmandu uses NPR (रू) while Osaka uses JPY (¥). Check current exchange rates when planning travel or business between these cities.

How do Kathmandu and Osaka compare in size?

Kathmandu has a population of approximately 1.4 million (metro: 3.0 million), while Osaka has approximately 2.8 million (metro: 19 million).

What are the major landmarks in Kathmandu and Osaka?

Kathmandu is known for Boudhanath Stupa, Swayambhunath, Durbar Square. Osaka is famous for Osaka Castle, Dotonbori, Universal Studios Japan.

Do Kathmandu and Osaka have stock exchanges?

Yes. Kathmandu has the NEPSE (Nepal Stock Exchange) and Osaka has the OSE (Osaka Exchange - derivatives). The +3h 15m time difference affects trading hour overlaps between these exchanges.