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).

Vietnam to NPT

-1h 15m

Vietnam

ICTSOURCE

UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

NPT

UTC+05:45

HH10

MM45

10:45 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Vietnam

NPT

12:00 AM

10:45 PM-1

2:00 AM

12:45 AM

4:00 AM

2:45 AM

6:00 AM

4:45 AM

8:00 AM

6:45 AM

10:00 AM

8:45 AM

12:00 PM

10:45 AM

2:00 PM

12:45 PM

4:00 PM

2:45 PM

6:00 PM

4:45 PM

8:00 PM

6:45 PM

10:00 PM

8:45 PM

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

ICT and NPT on the World Map

The map below highlights the ICT (Indochina Time) and NPT (Nepal Time) timezone regions across the globe.

ICT Zone

→

NPT Zone

Explore all world timezones interactively →

ICT – Indochina Time

UTC+07:00

Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.

Countries in ICT

ThailandVietnamCambodiaLaosIndonesia (WIB)

Major Cities in ICT

BangkokHo Chi Minh CityHanoiJakartaPhnom PenhVientiane

Key Facts about ICT

•Bangkok is one of the most visited cities in the world.
•ICT is 12 hours ahead of EST.
•Thailand, Vietnam, and Cambodia all share ICT.

Daylight Saving:No – UTC+07:00 year-round

Learn more about ICT 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

Understanding the -1h 15m Gap: Vietnam vs NPT

Vietnam runs on Indochina Time (ICT) at UTC+07:00. NPT runs on Nepal Time (NPT) at UTC+05:45. That puts Vietnam 1 hour 15 minutes behind NPT — a difference of -1h 15m at the current offsets.

In practice, when it is 9:00 AM in Vietnam it is 7:45 AM in NPT. Midnight in Vietnam is 10:45 PM in NPT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Vietnam to NPT time conversion table

Vietnam (ICT)	NPT (NPT)	Day
12:00 AM	10:45 PM	previous day
6:00 AM	4:45 AM	same day
7:00 AM	5:45 AM	same day
8:00 AM	6:45 AM	same day
9:00 AM	7:45 AM	same day
12:00 PM	10:45 AM	same day
3:00 PM	1:45 PM	same day
5:00 PM	3:45 PM	same day
6:00 PM	4:45 PM	same day
9:00 PM	7:45 PM	same day

Why people convert Vietnam to NPT time

Scheduling a call from Vietnam to NPT: a 10:00 AM start in Vietnam lands at 8:45 AM in NPT, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Vietnam and NPT are inside the 9-to-5 working day between 10:15 AM and 5:00 PM ICT time (9:00 AM–3:45 PM NPT). That is roughly 6 hours 45 minutes of usable overlap.
Watching a live event or market open: Vietnam viewers need 7:45 AM in NPT to catch a 9:00 AM start there, and 1:15 AM if the event is anchored to Vietnam.

Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -1h 15m gap is not.
Block 10:15 AM–5:00 PM ICT as the recurring meeting window if you work primarily from Vietnam and need NPT colleagues present.

About ICT (Indochina Time)

Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving time.

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 Vietnam and NPT

Both Vietnam and NPT sit inside the 9 AM – 5 PM working day between 10:15 AM–5:00 PM ICT, which is 9:00 AM–3:45 PM NPT. That gives roughly 6 hours and 45 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Vietnam and NPT share 6 hours of working-hours overlap (10:15 AM–5:00 PM ICT), so scheduling a live meeting is straightforward.

Vietnam is 1 hour 15 minutes behind NPT (ICT UTC+07:00 → NPT UTC+05:45). The shared working window is 10:15 AM–5:00 PM ICT. 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 Vietnam and NPT?

Vietnam (ICT, UTC+07:00) is 1 hour 15 minutes behind NPT (NPT, UTC+05:45). The gap is currently -1h 15m.

How do I convert Vietnam time to NPT time?

Add -1h 15m to Vietnam local time. For example, 9:00 AM in Vietnam is 7:45 AM in NPT.

What time is it in NPT right now?

NPT 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 -1h 15m offset from Vietnam.