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JST to CST converter
Japan Standard Time
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Central Time
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Central Time is 14 hours behind Japan Standard Time for most of the year, and 15 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
When does the difference change?
In 2026:
- January 1 to March 7: Central Time is 15 hours behind Japan Standard Time
- March 8 to October 31: Central Time is 14 hours behind Japan Standard Time
- November 1 to December 31: Central Time is 15 hours behind Japan Standard Time
Questions
What time is 9 AM JST in CST?
For most of the year, 9 AM Japan Standard Time is 7 PM the day before Central Time. For part of the year it is 6 PM the day before, because of daylight saving time.
How many hours ahead or behind is CST from JST?
Central Time is 14 hours behind Japan Standard Time for most of the year, and 15 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
Does the JST to CST difference change?
Yes. It changes 2 times in 2026 because of daylight saving time.
About these time zones
JST to CST, hour by hour
| Japan Standard Time | Central Time |
|---|---|
| 12 AM | 10 AM (previous day) |
| 1 AM | 11 AM (previous day) |
| 2 AM | 12 PM (previous day) |
| 3 AM | 1 PM (previous day) |
| 4 AM | 2 PM (previous day) |
| 5 AM | 3 PM (previous day) |
| 6 AM | 4 PM (previous day) |
| 7 AM | 5 PM (previous day) |
| 8 AM | 6 PM (previous day) |
| 9 AM | 7 PM (previous day) |
| 10 AM | 8 PM (previous day) |
| 11 AM | 9 PM (previous day) |
| 12 PM | 10 PM (previous day) |
| 1 PM | 11 PM (previous day) |
| 2 PM | 12 AM |
| 3 PM | 1 AM |
| 4 PM | 2 AM |
| 5 PM | 3 AM |
| 6 PM | 4 AM |
| 7 PM | 5 AM |
| 8 PM | 6 AM |
| 9 PM | 7 AM |
| 10 PM | 8 AM |
| 11 PM | 9 AM |
Based on the clocks on Monday, October 12, 2026. Use the converter above for another date.