NPT to BST Time Converter
BST is 4 hours and 45 minutes behind NPT. NPT is UTC+5:45, and BST is UTC+1:00.
Best Time to Call Between NPT and BST
Both zones are inside normal business hours between 2:00 PM and 5:00 PM NPT — that's 9:15 AM to 12:15 PM BST. That's a 3-hour window.
both at work NPT only BST only neither — hours along the strip are NPT.
Common Times Converted
NPT on the left, BST on the right.
NPT to BST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| NPT | BST | Working hours |
|---|---|---|
| 12:00 AM | 7:15 PM prev day | — |
| 1:00 AM | 8:15 PM prev day | — |
| 2:00 AM | 9:15 PM prev day | — |
| 3:00 AM | 10:15 PM prev day | — |
| 4:00 AM | 11:15 PM prev day | — |
| 5:00 AM | 12:15 AM | — |
| 6:00 AM | 1:15 AM | — |
| 7:00 AM | 2:15 AM | — |
| 8:00 AM | 3:15 AM | — |
| 9:00 AM | 4:15 AM | NPT only |
| 10:00 AM | 5:15 AM | NPT only |
| 11:00 AM | 6:15 AM | NPT only |
| 12:00 PM | 7:15 AM | NPT only |
| 1:00 PM | 8:15 AM | NPT only |
| 2:00 PM | 9:15 AM | Both zones |
| 3:00 PM | 10:15 AM | Both zones |
| 4:00 PM | 11:15 AM | Both zones |
| 5:00 PM | 12:15 PM | BST only |
| 6:00 PM | 1:15 PM | BST only |
| 7:00 PM | 2:15 PM | BST only |
| 8:00 PM | 3:15 PM | BST only |
| 9:00 PM | 4:15 PM | BST only |
| 10:00 PM | 5:15 PM | — |
| 11:00 PM | 6:15 PM | — |
What NPT and BST Actually Are
NPT — Nepal Time
Kathmandu, Pokhara. Standing at UTC+5:45 as written, and the region does not change its clocks, so that offset holds all year. Nepal sits at UTC+5:45 — one of only two zones in the world on a 45-minute offset.
Nepal is deliberately 15 minutes ahead of India, an offset chosen so the country keeps its own time rather than sharing its neighbor's.
BST — British Summer Time
London, Manchester, Birmingham, Glasgow, and the rest of the UK from late March to late October. Standing at UTC+1:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to GMT. BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.
British Summer Time began in 1916 as a wartime fuel-saving measure and has run every year since, making it one of the oldest continuous daylight saving schemes in the world.
What This Means in Practice
Expect times on the half hour
NPT sits on a 45-minute offset rather than a whole hour, so a round number on one side is never a round number on the other. A 9:00 meeting becomes 45 minutes past the hour, which is exactly the detail calendar invitations get wrong when someone converts in their head.
This gap is not fixed
BST changes its clocks and NPT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on NPT
Cities on BST
Frequently Asked Questions
What is the time difference between NPT and BST?
BST is 4 hours and 45 minutes behind NPT.
What is 9:00 AM NPT in BST?
9:00 AM NPT is 4:15 AM BST.
What are the best hours to schedule a call between NPT and BST?
Between 2:00 PM and 5:00 PM NPT, which is 9:15 AM to 12:15 PM BST. Both sides are inside normal business hours through that window.
Does the difference between NPT and BST change during the year?
Yes. BST observes daylight saving and NPT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.
Does NPT always mean Nepal Time?
Nepal sits at UTC+5:45 — one of only two zones in the world on a 45-minute offset.
Does BST always mean British Summer Time?
BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.