Convert JST to NPT
NPT is 3 hours 15 minutes behind JST. JST is UTC+9 and NPT is UTC+5:45.
Right now: JST · NPT
Best time to schedule a meeting
Standard 9–5 working hours overlap for 4 hours: 1:00 PM–5:00 PM JST (9:00 AM–1:00 PM NPT). Schedule meetings inside that window.
| JST | NPT | Suitable? |
|---|---|---|
| 9:00 AM | 5:45 AM | outside 9–5 |
| 10:00 AM | 6:45 AM | outside 9–5 |
| 11:00 AM | 7:45 AM | outside 9–5 |
| 12:00 PM | 8:45 AM | outside 9–5 |
| 1:00 PM | 9:45 AM | working hours |
| 2:00 PM | 10:45 AM | working hours |
| 3:00 PM | 11:45 AM | working hours |
| 4:00 PM | 12:45 PM | working hours |
| 5:00 PM | 1:45 PM | working hours |
JST to NPT conversion table
| JST | NPT |
|---|---|
| 12:00 AM | 8:45 PM (previous day) |
| 1:00 AM | 9:45 PM (previous day) |
| 2:00 AM | 10:45 PM (previous day) |
| 3:00 AM | 11:45 PM (previous day) |
| 4:00 AM | 12:45 AM |
| 5:00 AM | 1:45 AM |
| 6:00 AM | 2:45 AM |
| 7:00 AM | 3:45 AM |
| 8:00 AM | 4:45 AM |
| 9:00 AM | 5:45 AM |
| 10:00 AM | 6:45 AM |
| 11:00 AM | 7:45 AM |
| 12:00 PM | 8:45 AM |
| 1:00 PM | 9:45 AM |
| 2:00 PM | 10:45 AM |
| 3:00 PM | 11:45 AM |
| 4:00 PM | 12:45 PM |
| 5:00 PM | 1:45 PM |
| 6:00 PM | 2:45 PM |
| 7:00 PM | 3:45 PM |
| 8:00 PM | 4:45 PM |
| 9:00 PM | 5:45 PM |
| 10:00 PM | 6:45 PM |
| 11:00 PM | 7:45 PM |
About JST
Japan Standard Time (JST) is UTC+9. It is used in all of Japan, with no daylight saving.
Japan Standard Time is UTC+9 for the whole country and has had no daylight saving since 1951, when the occupation-era experiment was abandoned. Proposals to reintroduce it, most recently before the 2020 Olympics, have failed each time. The offset is shared with South Korea, so Tokyo and Seoul never differ by even a minute.
About NPT
Nepal Time (NPT) is UTC+5:45. It is used in Nepal, all year.
Nepal Time is UTC+5:45 — the only zone in the world offset by three quarters of an hour, set so that noon falls over Kathmandu rather than over the Indian meridian fifteen minutes away. It breaks almost every piece of software that stores offsets in whole or half hours, and it is fifteen minutes ahead of India rather than the round number people assume.
Does this gap change with the seasons?
Neither JST nor NPT shifts with the seasons, so this 3.25-hour difference holds all year. That is unusual enough to be worth relying on: most cross-continental gaps move twice a year.
This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.
Frequently asked questions
What time is 9:00 AM JST in NPT?
9:00 AM JST is 5:45 AM NPT.
Is NPT ahead of JST?
NPT is 3 hours 15 minutes behind JST.
Which time zone does this use?
JST is UTC+9 and NPT is UTC+5:45. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.