BST to NPT Time Converter
NPT is 4 hours and 45 minutes ahead of BST. BST is UTC+1:00, and NPT is UTC+5:45.
Best Time to Call Between BST and NPT
Both zones are inside normal business hours between 9:00 AM and 1:00 PM BST — that's 1:45 PM to 5:45 PM NPT. That's a 4-hour window.
both at work BST only NPT only neither — hours along the strip are BST.
Common Times Converted
BST on the left, NPT on the right.
BST to NPT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| BST | NPT | Working hours |
|---|---|---|
| 12:00 AM | 4:45 AM | — |
| 1:00 AM | 5:45 AM | — |
| 2:00 AM | 6:45 AM | — |
| 3:00 AM | 7:45 AM | — |
| 4:00 AM | 8:45 AM | — |
| 5:00 AM | 9:45 AM | NPT only |
| 6:00 AM | 10:45 AM | NPT only |
| 7:00 AM | 11:45 AM | NPT only |
| 8:00 AM | 12:45 PM | NPT only |
| 9:00 AM | 1:45 PM | Both zones |
| 10:00 AM | 2:45 PM | Both zones |
| 11:00 AM | 3:45 PM | Both zones |
| 12:00 PM | 4:45 PM | Both zones |
| 1:00 PM | 5:45 PM | BST only |
| 2:00 PM | 6:45 PM | BST only |
| 3:00 PM | 7:45 PM | BST only |
| 4:00 PM | 8:45 PM | BST only |
| 5:00 PM | 9:45 PM | — |
| 6:00 PM | 10:45 PM | — |
| 7:00 PM | 11:45 PM | — |
| 8:00 PM | 12:45 AM next day | — |
| 9:00 PM | 1:45 AM next day | — |
| 10:00 PM | 2:45 AM next day | — |
| 11:00 PM | 3:45 AM next day | — |
What BST and NPT Actually Are
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.
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.
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 BST
Cities on NPT
Frequently Asked Questions
What is the time difference between BST and NPT?
NPT is 4 hours and 45 minutes ahead of BST.
What is 9:00 AM BST in NPT?
9:00 AM BST is 1:45 PM NPT.
What are the best hours to schedule a call between BST and NPT?
Between 9:00 AM and 1:00 PM BST, which is 1:45 PM to 5:45 PM NPT. Both sides are inside normal business hours through that window.
Does the difference between BST and NPT 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 BST always mean British Summer Time?
BST also stands for Bangladesh Standard Time (UTC+6). BDT is the clearer label for that one.
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.