Houston Time to JST Converter
JST is 15 hours ahead of CST. 9:00 AM CST = 12:00 AM JST (next day).
JST is 15 hours ahead of CST at the moment. To convert Houston Time to JST, add 15 hours to the Houston Time time: 9:00 AM CST = 12:00 AM JST (next day).
Houston Time (Houston time) is used in Houston, USA. JST (Japan Time) is used in Japan.
Houston Time to JST time conversion table
Houston Time to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Houston Time | JST |
|---|---|
| 12:00 AM | 3:00 PM |
| 1:00 AM | 4:00 PM |
| 2:00 AM | 5:00 PM |
| 3:00 AM | 6:00 PM |
| 4:00 AM | 7:00 PM |
| 5:00 AM | 8:00 PM |
| 6:00 AM | 9:00 PM |
| 7:00 AM | 10:00 PM |
| Houston Time | JST |
|---|---|
| 8:00 AM | 11:00 PM |
| 9:00 AM | 12:00 AM+1 |
| 10:00 AM | 1:00 AM+1 |
| 11:00 AM | 2:00 AM+1 |
| 12:00 PM | 3:00 AM+1 |
| 1:00 PM | 4:00 AM+1 |
| 2:00 PM | 5:00 AM+1 |
| 3:00 PM | 6:00 AM+1 |
| Houston Time | JST |
|---|---|
| 4:00 PM | 7:00 AM+1 |
| 5:00 PM | 8:00 AM+1 |
| 6:00 PM | 9:00 AM+1 |
| 7:00 PM | 10:00 AM+1 |
| 8:00 PM | 11:00 AM+1 |
| 9:00 PM | 12:00 PM+1 |
| 10:00 PM | 1:00 PM+1 |
| 11:00 PM | 2:00 PM+1 |
Conversion table from Houston Time to JST for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in JST, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert Houston Time to JST
Add 15 hours to the Houston Time time to get JST.
Example: 9:00 AM CST = 12:00 AM JST (next day).
Across midnight: 10:00 PM CST = 1:00 PM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between Houston Time and JST
The time difference between Houston Time and JST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: JST is 15 hours ahead of Houston Time.
- 8 Mar 2026 – 31 Oct 2026: JST is 14 hours ahead of Houston Time.
- 1 Nov 2026 – 30 Dec 2026: JST is 15 hours ahead of Houston Time.
Houston Time and JST during daylight saving time
- Houston Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between Houston Time and JST
Houston Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM CST, which is 10:00 PM JST.
Houston Time to JST FAQ
What is the time difference between Houston Time and JST?
Right now JST is 15 hours ahead of CST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Houston Time in JST?
9:00 AM CST is 12:00 AM JST (next day).
What is 12 PM (noon) Houston Time in JST?
12:00 PM CST is 3:00 AM JST (next day).
Is JST ahead of or behind Houston Time?
JST is 15 hours ahead of CST, so it is later in JST than in Houston Time.
Does Houston Time change for daylight saving time?
Yes. Houston Time next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Houston Time and JST?
Houston Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM CST, which is 10:00 PM JST.
Related conversions
Convert JST to Houston Time
Convert Houston Time to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.