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.

Mumbai to Kathmandu

+0h 15m

Mumbai

ISTSOURCE

India · UTC+05:30

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Kathmandu

NPT

Nepal · UTC+05:45

HH12

MM15

12:15 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Mumbai

Kathmandu

12:00 AM

12:15 AM

2:00 AM

2:15 AM

4:00 AM

4:15 AM

6:00 AM

6:15 AM

8:00 AM

8:15 AM

10:00 AM

10:15 AM

12:00 PM

12:15 PM

2:00 PM

2:15 PM

4:00 PM

4:15 PM

6:00 PM

6:15 PM

8:00 PM

8:15 PM

10:00 PM

10:15 PM

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

IST and NPT on the World Map

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

IST Zone

→

NPT Zone

Explore all world timezones interactively →

IST – India Standard Time

UTC+05:30

India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.

Countries in IST

IndiaSri Lanka

Major Cities in IST

MumbaiDelhiBangaloreKolkataChennaiHyderabadPuneAhmedabadColomboJaipurLucknowSurat

Key Facts about IST

•India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
•India uses a single time zone despite spanning 30° of longitude.
•IST is one of only a handful of time zones with a 30-minute offset.
•IST is the most populous single time zone in the world with over 1.4 billion people.
•The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.

Daylight Saving:No – UTC+05:30 year-round

Learn more about IST on Wikipedia

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

About Mumbai

Wikipedia

Mumbai operates on India Standard Time (IST), UTC+5:30. As India's financial capital and home to BSE (Asia's oldest stock exchange), Mumbai timing is crucial for Asia markets.

Population:12.4 million

Metro:21.3 million

Business Hours:9:30 AM - 5:30 PM IST

Currency:INR (₹)

Stock Exchange:BSE (Bombay Stock Exchange), NSE

Key Landmarks

Gateway of IndiaChhatrapati Shivaji TerminusMarine DriveElephanta CavesHaji Ali Dargah

Did You Know?

The Mumbai local trains carry over 7.5 million passengers daily.

Learn more about IST timezone →

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 →

Mumbai vs Kathmandu: Offsets, DST and Best Call Times

Mumbai runs on India Standard Time (IST) at UTC+05:30. Kathmandu runs on Nepal Time (NPT) at UTC+05:45. That puts Mumbai 15 minutes ahead of Kathmandu — a difference of +0h 15m at the current offsets.

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

Mumbai to Kathmandu time conversion table

Mumbai (IST)	Kathmandu (NPT)	Day
12:00 AM	12:15 AM	same day
6:00 AM	6:15 AM	same day
7:00 AM	7:15 AM	same day
8:00 AM	8:15 AM	same day
9:00 AM	9:15 AM	same day
12:00 PM	12:15 PM	same day
3:00 PM	3:15 PM	same day
5:00 PM	5:15 PM	same day
6:00 PM	6:15 PM	same day
9:00 PM	9:15 PM	same day

Why people convert Mumbai to Kathmandu time

Scheduling a call from Mumbai to Kathmandu: a 10:00 AM start in Mumbai lands at 10:15 AM in Kathmandu, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Mumbai and Kathmandu are inside the 9-to-5 working day between 9:00 AM and 4:45 PM IST time (9:15 AM–5:00 PM NPT). That is roughly 7 hours 45 minutes of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in Mumbai is 8:15 PM in Kathmandu makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a +0h 15m gap is not.
Block 9:00 AM–4:45 PM IST as the recurring meeting window if you work primarily from Mumbai and need Kathmandu colleagues present.

About IST (India Standard Time)

India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.

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).

Best time to call between Mumbai and Kathmandu

Both Mumbai and Kathmandu sit inside the 9 AM – 5 PM working day between 9:00 AM–4:45 PM IST, which is 9:15 AM–5:00 PM NPT. That gives roughly 7 hours and 45 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Mumbai and Kathmandu share 7 hours of working-hours overlap (9:00 AM–4:45 PM IST), so scheduling a live meeting is straightforward.

Mumbai is 15 minutes ahead of Kathmandu (IST UTC+05:30 → NPT UTC+05:45). The shared working window is 9:00 AM–4:45 PM IST. 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 Mumbai and Kathmandu?

Mumbai (IST, UTC+05:30) is 15 minutes ahead of Kathmandu (NPT, UTC+05:45). The gap is currently +0h 15m.

How do I convert Mumbai time to Kathmandu time?

Add +0h 15m to Mumbai local time. For example, 9:00 AM in Mumbai is 9:15 AM in Kathmandu.

What time is it in Kathmandu right now?

Kathmandu uses NPT at UTC+05:45. Use the live converter at the top of this page — it updates in real time and already accounts for the +0h 15m offset from Mumbai.

What is the best time to call Kathmandu from Mumbai?

Call between 9:00 AM and 4:45 PM IST — that maps to 9:15 AM–5:00 PM NPT and keeps both parties inside the working day.

Which is ahead, Mumbai or Kathmandu?

Mumbai is 15 minutes ahead of Kathmandu. When it is 12:00 PM in Mumbai it is 12:15 PM in Kathmandu.

Do Mumbai and Kathmandu use different time zones?

Mumbai (India) uses IST at UTC+05:30, while Kathmandu (Nepal) uses NPT at UTC+05:45. The IANA identifiers are Asia/Kolkata and Asia/Kathmandu.

Does daylight saving time affect the Mumbai–Kathmandu difference?

Neither zone observes daylight saving time, so the +0h 15m offset between Mumbai and Kathmandu is fixed all year.

Which other cities share Mumbai's time zone?

IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.

Which countries use IST, Mumbai's zone?

IST is used in India, Sri Lanka.

Is there a day difference between Mumbai and Kathmandu?

Not normally. The +0h 15m gap only pushes the date over for late-evening times.

What is the time difference between Mumbai and Kathmandu?

Kathmandu is +0h 15m from Mumbai.

What timezone is Mumbai in?

Mumbai operates on India Standard Time (IST), UTC+5:30. As India's financial capital and home to BSE (Asia's oldest stock exchange), Mumbai timing is crucial for Asia markets.

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 are the business hours in Mumbai?

Standard business hours in Mumbai are 9:30 AM - 5:30 PM IST.

What are the business hours in Kathmandu?

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

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

The best overlap for a call is when both cities are in business hours. Mumbai works 9:30 AM - 5:30 PM IST and Kathmandu works 10:00 AM - 5:00 PM NPT (+0h 15m difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Mumbai and Kathmandu?

Mumbai uses INR (₹) while Kathmandu uses NPR (रू). Check current exchange rates when planning travel or business between these cities.

How do Mumbai and Kathmandu compare in size?

Mumbai has a population of approximately 12.4 million (metro: 21.3 million), while Kathmandu has approximately 1.4 million (metro: 3.0 million).

What are the major landmarks in Mumbai and Kathmandu?

Mumbai is known for Gateway of India, Chhatrapati Shivaji Terminus, Marine Drive. Kathmandu is famous for Boudhanath Stupa, Swayambhunath, Durbar Square.

Do Mumbai and Kathmandu have stock exchanges?

Yes. Mumbai has the BSE (Bombay Stock Exchange), NSE and Kathmandu has the NEPSE (Nepal Stock Exchange). The +0h 15m time difference affects trading hour overlaps between these exchanges.