UTC to JST: UTC is 9 hours behind JST
Coordinated Universal Time is 9 hours behind Japan Standard Time, on every day of the year. It is 7:36 pm UTC in UTC and 4:36 am JST in Japan, which is already the next day there.
Convert a specific time from UTC to JST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between UTC and JST?
Japan Standard Time is 9 hours ahead of Coordinated Universal Time. To go from UTC to JST you add 9 hours. That gap holds on all 365 days of 2026: neither zone moves its clocks.
UTC to JST conversion table
Every hour of Wednesday, September 23, 2026 in UTC, with the matching reading in Japan. 9 of the 24 hours land on a different calendar date in Japan, which is the part people get wrong when they schedule across this pair.
| UTC | UTC 24h | JST | JST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 9:00 am | 09:00 | same day |
| 1:00 am | 01:00 | 10:00 am | 10:00 | same day |
| 2:00 am | 02:00 | 11:00 am | 11:00 | same day |
| 3:00 am | 03:00 | 12:00 pm | 12:00 | same day |
| 4:00 am | 04:00 | 1:00 pm | 13:00 | same day |
| 5:00 am | 05:00 | 2:00 pm | 14:00 | same day |
| 6:00 am | 06:00 | 3:00 pm | 15:00 | same day |
| 7:00 am | 07:00 | 4:00 pm | 16:00 | same day |
| 8:00 am | 08:00 | 5:00 pm | 17:00 | same day |
| 9:00 am | 09:00 | 6:00 pm | 18:00 | same day |
| 10:00 am | 10:00 | 7:00 pm | 19:00 | same day |
| 11:00 am | 11:00 | 8:00 pm | 20:00 | same day |
| 12:00 pm | 12:00 | 9:00 pm | 21:00 | same day |
| 1:00 pm | 13:00 | 10:00 pm | 22:00 | same day |
| 2:00 pm | 14:00 | 11:00 pm | 23:00 | same day |
| 3:00 pm | 15:00 | 12:00 am | 00:00 | the next day |
| 4:00 pm | 16:00 | 1:00 am | 01:00 | the next day |
| 5:00 pm | 17:00 | 2:00 am | 02:00 | the next day |
| 6:00 pm | 18:00 | 3:00 am | 03:00 | the next day |
| 7:00 pm | 19:00 | 4:00 am | 04:00 | the next day |
| 8:00 pm | 20:00 | 5:00 am | 05:00 | the next day |
| 9:00 pm | 21:00 | 6:00 am | 06:00 | the next day |
| 10:00 pm | 22:00 | 7:00 am | 07:00 | the next day |
| 11:00 pm | 23:00 | 8:00 am | 08:00 | the next day |
What are the best hours to schedule a call between UTC and JST?
No hour of the standard 9:00 am to 5:00 pm working day falls inside working hours on both sides. UTC and Japan are 9 hours apart, which is too far for an overlap, so somebody has to take a call outside their own working day. The least painful options are below, ranked by how close both sides sit to the middle of the afternoon.
| UTC | JST | Working hours | Note |
|---|---|---|---|
| 7:00 am | 4:00 pm | JST only | early morning in UTC, afternoon in Japan |
| 8:00 am | 5:00 pm | neither side | mid morning in UTC, evening in Japan |
| 9:00 am | 6:00 pm | UTC only | mid morning in UTC, evening in Japan |
Does daylight saving change UTC to JST?
Coordinated Universal Time does not move its clocks at all, so its UTC+0 offset holds every day of the year.
Japan Standard Time does not move its clocks at all, so its UTC+9 offset holds every day of the year.
Is UTC ahead of or behind JST?
UTC is behind JST by 9 hours: when it is 12:00 pm in UTC, it is 9:00 pm in Japan. Neither Coordinated Universal Time nor Japan Standard Time observes daylight saving, so the abbreviations never change and the gap between them is fixed.
Coordinated Universal Time covers the reference all other zones are measured against. Japan Standard Time covers Tokyo, Osaka and the whole of Japan. The identifiers behind them are Etc/UTC and Asia/Tokyo, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is UTC in JST?
- UTC is 9 hours behind JST. 9:00 am UTC is 6:00 pm JST.
- How many hours ahead is JST of UTC?
- JST is 9 hours ahead of UTC.
- What time is it in Japan right now?
- 4:36 am JST on Thursday, September 24, 2026.
- When can UTC and Japan meet during working hours?
- There is no shared working hour. The closest fit is 7:00 am UTC, which is 4:00 pm JST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so UTC and JST are the abbreviations genuinely in force today rather than a fixed assumption.
UTC to JST by the hour
Other conversions
12 and 24 hour converter · 8 hours from now · Today · Day counter