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.

Nepal to Tehran

-2h 15m

Nepal

NPTSOURCE

UTC+05:45

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Tehran

IRST

Iran · UTC+03:30

HH09

MM45

09:45 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Nepal

Tehran

12:00 AM

9:45 PM-1

2:00 AM

11:45 PM-1

4:00 AM

1:45 AM

6:00 AM

3:45 AM

8:00 AM

5:45 AM

10:00 AM

7:45 AM

12:00 PM

9:45 AM

2:00 PM

11:45 AM

4:00 PM

1:45 PM

6:00 PM

3:45 PM

8:00 PM

5:45 PM

10:00 PM

7:45 PM

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

NPT and IRST on the World Map

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

NPT Zone

→

IRST 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

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

About Tehran

Wikipedia

Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.

Population:9.4 million

Metro:16.8 million

Business Hours:8:00 AM - 4:00 PM IRST

Currency:IRR (﷼)

Stock Exchange:TSE (Tehran Stock Exchange)

Key Landmarks

Azadi TowerGolestan PalaceGrand BazaarMilad TowerTabiat Bridge

Did You Know?

Iran Standard Time (IRST) is one of few timezones with a 30-minute offset (UTC+3:30).

Learn more about IRST timezone →

Nepal vs Tehran: Offsets, DST and Best Call Times

Nepal runs on Nepal Time (NPT) at UTC+05:45. Tehran runs on Iran Standard Time (IRST) at UTC+03:30. That puts Nepal 2 hours 15 minutes behind Tehran — a difference of -2h 15m at the current offsets.

In practice, when it is 9:00 AM in Nepal it is 6:45 AM in Tehran. Midnight in Nepal is 9:45 PM in Tehran. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Nepal to Tehran time conversion table

Nepal (NPT)	Tehran (IRST)	Day
12:00 AM	9:45 PM	previous day
6:00 AM	3:45 AM	same day
7:00 AM	4:45 AM	same day
8:00 AM	5:45 AM	same day
9:00 AM	6:45 AM	same day
12:00 PM	9:45 AM	same day
3:00 PM	12:45 PM	same day
5:00 PM	2:45 PM	same day
6:00 PM	3:45 PM	same day
9:00 PM	6:45 PM	same day

Why people convert Nepal to Tehran time

Scheduling a call from Nepal to Tehran: a 10:00 AM start in Nepal lands at 7:45 AM in Tehran, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Nepal and Tehran are inside the 9-to-5 working day between 11:15 AM and 5:00 PM NPT time (9:00 AM–2:45 PM IRST). That is roughly 5 hours 45 minutes of usable overlap.
Booking travel or deliveries: tracking Tehran local time against Nepal keeps pickup windows and arrival estimates honest across the -2h 15m offset.

Always state the zone abbreviation, not just the hour. "3:00 PM NPT" is unambiguous; "3 PM" across a -2h 15m gap is not.
Block 11:15 AM–5:00 PM NPT as the recurring meeting window if you work primarily from Nepal and need Tehran 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 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.

Best time to call between Nepal and Tehran

Both Nepal and Tehran sit inside the 9 AM – 5 PM working day between 11:15 AM–5:00 PM NPT, which is 9:00 AM–2:45 PM IRST. That gives roughly 5 hours and 45 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Nepal and Tehran share 5 hours of working-hours overlap (11:15 AM–5:00 PM NPT), so scheduling a live meeting is straightforward.

Nepal is 2 hours 15 minutes behind Tehran (NPT UTC+05:45 → IRST UTC+03:30). The shared working window is 11:15 AM–5:00 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 Nepal and Tehran?

Nepal (NPT, UTC+05:45) is 2 hours 15 minutes behind Tehran (IRST, UTC+03:30). The gap is currently -2h 15m.

How do I convert Nepal time to Tehran time?

Add -2h 15m to Nepal local time. For example, 9:00 AM in Nepal is 6:45 AM in Tehran.

What time is it in Tehran right now?

Tehran uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h 15m offset from Nepal.

What is the best time to call Tehran from Nepal?

Call between 11:15 AM and 5:00 PM NPT — that maps to 9:00 AM–2:45 PM IRST and keeps both parties inside the working day.

Which is behind, Nepal or Tehran?

Nepal is 2 hours 15 minutes behind Tehran. When it is 12:00 PM in Nepal it is 9:45 AM in Tehran.

Do Nepal and Tehran use different time zones?

Nepal (Nepal) uses NPT at UTC+05:45, while Tehran (Iran) uses IRST at UTC+03:30. The IANA identifiers are Asia/Kathmandu and Asia/Tehran.

Does daylight saving time affect the Nepal–Tehran difference?

Neither zone observes daylight saving time, so the -2h 15m offset between Nepal and Tehran is fixed all year.

Which other cities share Nepal's time zone?

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

Which countries use NPT, Nepal's zone?

NPT is used in Nepal.

Is there a day difference between Nepal and Tehran?

Not normally. The -2h 15m gap only pushes the date over the previous day.

What is the time difference between Nepal and Tehran?

Tehran is -2h 15m from Nepal.

What timezone is Nepal in?

Nepal operates on its local timezone.

What timezone is Tehran in?

Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.