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JST to CT time converter
US Central is 14 hours behind Japan for 238 days of 2026, and 15 hours behind for the other 127 days, because daylight saving changes the gap.
JST to CT conversion table
Local time in Japan and the matching time in US Central on two reference dates, one in winter and one in summer for the northern hemisphere.
| Japan (JST) | US Central on 15 January | US Central on 15 July |
|---|---|---|
| 08:00 | 17:00 (-1 day) | 18:00 (-1 day) |
| 09:00 | 18:00 (-1 day) | 19:00 (-1 day) |
| 10:00 | 19:00 (-1 day) | 20:00 (-1 day) |
| 12:00 | 21:00 (-1 day) | 22:00 (-1 day) |
| 15:00 | 00:00 | 01:00 |
| 17:00 | 02:00 | 03:00 |
| 18:00 | 03:00 | 04:00 |
| 21:00 | 06:00 | 07:00 |
Best meeting times between Japan and US Central
- January: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-12:00 JST = 16:00-21:00 CT (-1 day).
- July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-11:00 JST = 17:00-21:00 CT (-1 day).
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between JST and CT
- Japan does not change its clocks in 2026.
- US Central moves its clocks forward on 8 March and back on 1 November in 2026.
- The gap is 14 hours for 238 days and 15 hours for 127 days of 2026.
About the two zones
Japan. Japan Standard Time is UTC+9 all year with no daylight saving.
US Central. US Central Time is UTC-6 in winter (CST) and UTC-5 in summer (CDT), changing together with the other US zones.
Frequently asked questions
What time is 9 AM JST in CT?
On 15 January, 09:00 in Japan is 18:00 (-1 day) in US Central. On 15 July it is 19:00 (-1 day).
What is the time difference between Japan and US Central?
US Central is 14 hours behind Japan for 238 days of 2026, and 15 hours behind for the other 127 days, because daylight saving changes the gap.
Does the time difference between JST and CT change during the year?
Yes. US Central changes its clocks and Japan does not, so the gap moves between 14 and 15 hours. Always convert with the actual date.
When is the best time for a meeting between Japan and US Central?
No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-12:00 JST = 16:00-21:00 CT (-1 day). In July: No overlap inside both working days. The closest flexible hours (07:00-21:00): 07:00-11:00 JST = 17:00-21:00 CT (-1 day).
More conversions
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