NPT to BST
-4h 45mNPT
NPTSOURCEBST
BSTGreen rows indicate typical business hours (9 AM - 5 PM)
NPT and BST on the World Map
The map below highlights the NPT (Nepal Time) and BST (British Summer 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.
BST – British Summer Time
UTC+01:00British Summer Time (BST, UTC+01:00) is the daylight saving period in the United Kingdom, running from late March to late October.
- •BST runs from the last Sunday in March to the last Sunday in October.
- •BST is exactly one hour ahead of GMT, the UK's standard time.
- •During BST, London is 4 hours ahead of New York while the US is on Eastern Daylight Time.
- •The Isle of Man and the Channel Islands also observe BST.
Everything You Need to Know About NPT and BST Time
NPT runs on Nepal Time (NPT) at UTC+05:45. BST runs on British Summer Time (BST) at UTC+01:00. That puts NPT 4 hours 45 minutes behind BST — a difference of -4h 45m at the current offsets.
In practice, when it is 9:00 AM in NPT it is 4:15 AM in BST. Midnight in NPT is 7:15 PM in BST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
NPT to BST time conversion table
| NPT (NPT) | BST (BST) | Day |
|---|---|---|
| 12:00 AM | 7:15 PM | previous day |
| 6:00 AM | 1:15 AM | same day |
| 7:00 AM | 2:15 AM | same day |
| 8:00 AM | 3:15 AM | same day |
| 9:00 AM | 4:15 AM | same day |
| 12:00 PM | 7:15 AM | same day |
| 3:00 PM | 10:15 AM | same day |
| 5:00 PM | 12:15 PM | same day |
| 6:00 PM | 1:15 PM | same day |
| 9:00 PM | 4:15 PM | same day |
Why people convert NPT to BST time
- Scheduling a call from NPT to BST: a 10:00 AM start in NPT lands at 5:15 AM in BST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both NPT and BST are inside the 9-to-5 working day between 1:45 PM and 5:00 PM NPT time (9:00 AM–12:15 PM BST). That is roughly 3 hours 15 minutes of usable overlap.
- Watching a live event or market open: NPT viewers need 4:15 AM in BST to catch a 9:00 AM start there, and 4:45 AM 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 -4h 45m gap is not.
- Block 1:45 PM–5:00 PM NPT as the recurring meeting window if you work primarily from NPT and need BST 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 BST (British Summer Time)
British Summer Time (BST) is the daylight saving period in the United Kingdom, when clocks move one hour forward from Greenwich Mean Time (GMT, UTC+00:00) to UTC+01:00. It runs from the last Sunday in March to the last Sunday in October. England, Scotland, Wales and Northern Ireland all follow it, along with the Isle of Man and the Channel Islands of Jersey and Guernsey. During BST, London is one hour ahead of UTC, four hours ahead of New York on Eastern Daylight Time, and five hours ahead of New York once the United States returns to Eastern Standard Time in November. BST is also used to abbreviate Bangladesh Standard Time (UTC+06:00), which is listed separately on this site.
Best time to call between NPT and BST
Both NPT and BST sit inside the 9 AM – 5 PM working day between 1:45 PM–5:00 PM NPT, which is 9:00 AM–12:15 PM BST. That gives roughly 3 hours and 15 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
NPT and BST overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.
NPT is 4 hours 45 minutes behind BST (NPT UTC+05:45 → BST UTC+01:00). The shared working window is 1:45 PM–5:00 PM NPT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
NPT
Does not observe DST
BST
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
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 BST?
NPT (NPT, UTC+05:45) is 4 hours 45 minutes behind BST (BST, UTC+01:00). The gap is currently -4h 45m.
How do I convert NPT time to BST time?
Add -4h 45m to NPT local time. For example, 9:00 AM in NPT is 4:15 AM in BST.
What time is it in BST right now?
BST uses BST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h 45m offset from NPT.
What is the best time to call BST from NPT?
Call between 1:45 PM and 5:00 PM NPT — that maps to 9:00 AM–12:15 PM BST and keeps both parties inside the working day.
Which is behind, NPT or BST?
NPT is 4 hours 45 minutes behind BST. When it is 12:00 PM in NPT it is 7:15 AM in BST.
Does daylight saving time affect the NPT–BST difference?
Neither zone observes daylight saving time, so the -4h 45m offset between NPT and BST 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 BST?
Not normally. The -4h 45m gap only pushes the date over the previous day.
What is the time difference between NPT and BST?
BST is -4h 45m from NPT.
What timezone is NPT in?
NPT operates on its local timezone.
What timezone is BST in?
BST operates on its local timezone.
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 BST timezone?
Major cities in the BST timezone include London, Birmingham, Manchester, Glasgow, Edinburgh, Cardiff, Belfast, Liverpool.
What is the UTC offset for BST?
British Summer Time (BST) is at UTC+01:00. During daylight saving time, it shifts to BST.
What should I know about the BST timezone?
BST runs from the last Sunday in March to the last Sunday in October. BST is exactly one hour ahead of GMT, the UK's standard time.
When is it midnight in NPT, what time is it in BST?
When it is 12:00 AM (midnight) in NPT (NPT), it is -4h 45m later in BST (BST).
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