NPT to Honolulu
-15h 45mNPT
NPTSOURCEHonolulu
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
NPT and HST on the World Map
The map below highlights the NPT (Nepal Time) and HST (Hawaii Standard Time) timezone regions across the globe.
NPT – Nepal Time
UTC+05:45Nepal 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.
- •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.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •Hawaii does not observe daylight saving time.
- •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
- •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
About Honolulu
WikipediaHonolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.
Pearl Harbor memorial receives over 2 million visitors annually.
NPT vs Honolulu: Offsets, DST and Best Call Times
NPT runs on Nepal Time (NPT) at UTC+05:45. Honolulu runs on Hawaii-Aleutian Standard Time (HST) at UTC-10:00. That puts NPT 15 hours 45 minutes behind Honolulu — a difference of -15h 45m at the current offsets.
In practice, when it is 9:00 AM in NPT it is 5:15 PM in Honolulu on the previous day. Midnight in NPT is 8:15 AM in Honolulu. Neither zone observes daylight saving time, so the offset between them stays constant all year.
NPT to Honolulu time conversion table
| NPT (NPT) | Honolulu (HST) | Day |
|---|---|---|
| 12:00 AM | 8:15 AM | previous day |
| 6:00 AM | 2:15 PM | previous day |
| 7:00 AM | 3:15 PM | previous day |
| 8:00 AM | 4:15 PM | previous day |
| 9:00 AM | 5:15 PM | previous day |
| 12:00 PM | 8:15 PM | previous day |
| 3:00 PM | 11:15 PM | previous day |
| 5:00 PM | 1:15 AM | same day |
| 6:00 PM | 2:15 AM | same day |
| 9:00 PM | 5:15 AM | same day |
Why people convert NPT to Honolulu time
- Scheduling a call from NPT to Honolulu: a 10:00 AM start in NPT lands at 6:15 PM in Honolulu the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -15h 45m gap: NPT and Honolulu 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 Honolulu is 5:15 PM in NPT.
- Watching a live event or market open: NPT viewers need 5:15 PM in Honolulu to catch a 9:00 AM start there, and 3:45 PM if the event is anchored to NPT.
- Always state the zone abbreviation, not just the hour. "3:00 PM NPT" is unambiguous; "3 PM" across a -15h 45m gap is not.
- With a -15h 45m gap there is no shared 9-to-5 window, so alternate the early start: one week NPT takes the early slot, the next week Honolulu does.
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 HST (Hawaii Standard Time)
Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.
Best time to call between NPT and Honolulu
With a -15h 45m offset there is no overlap inside a normal 9 AM – 5 PM day. Honolulu opens at 9:00 AM HST, which is 5:15 PM in NPT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
NPT and Honolulu have no shared working hours because of the -15h 45m gap. Teams need to alternate early starts or rely on asynchronous handovers.
NPT is 15 hours 45 minutes behind Honolulu (NPT UTC+05:45 → HST UTC-10:00). 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:
Frequently Asked Questions
What is the time difference between NPT and Honolulu?
NPT (NPT, UTC+05:45) is 15 hours 45 minutes behind Honolulu (HST, UTC-10:00). The gap is currently -15h 45m.
How do I convert NPT time to Honolulu time?
Add -15h 45m to NPT local time. For example, 9:00 AM in NPT is 5:15 PM in Honolulu (previous day).
What time is it in Honolulu right now?
Honolulu uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -15h 45m offset from NPT.
What is the best time to call Honolulu from NPT?
There is no shared working-hours window because of the -15h 45m gap. The closest option is 1:00 PM in NPT, which is 9:15 PM in Honolulu.
Which is behind, NPT or Honolulu?
NPT is 15 hours 45 minutes behind Honolulu. When it is 12:00 PM in NPT it is 8:15 PM in Honolulu.
Do NPT and Honolulu use different time zones?
NPT uses NPT at UTC+05:45, while Honolulu (USA) uses HST at UTC-10:00. The IANA identifiers are Asia/Kathmandu and Pacific/Honolulu.
Does daylight saving time affect the NPT–Honolulu difference?
Neither zone observes daylight saving time, so the -15h 45m offset between NPT and Honolulu is fixed all year.
Which other cities share NPT's time zone?
NPT also covers Kathmandu, Pokhara, Lalitpur, Bharatpur, Biratnagar.
Which countries use NPT, NPT's zone?
NPT is used in Nepal.
Is there a day difference between NPT and Honolulu?
Sometimes. The -15h 45m gap is large enough that 8:00 PM or later in NPT already falls on the in Honolulu.
What is the time difference between NPT and Honolulu?
Honolulu is -15h 45m from NPT.
What timezone is NPT in?
NPT operates on its local timezone.
What timezone is Honolulu in?
Honolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.
What are the business hours in Honolulu?
Standard business hours in Honolulu are 8:00 AM - 5:00 PM HST.
Which countries use NPT (Nepal Time)?
NPT is used in Nepal.
Does NPT observe daylight saving time?
No, NPT does not observe daylight saving time and remains at UTC+05:45 year-round.
What are some interesting 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.
Which cities are in the HST timezone?
Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.
What is the UTC offset for HST?
Hawaii Standard Time (HST) is at UTC-10:00.
What should I know about the HST timezone?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
When is it midnight in NPT, what time is it in Honolulu?
When it is 12:00 AM (midnight) in NPT (NPT), it is -15h 45m later in Honolulu (HST).
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