IST to Houston Time Converter
CST is 11 hours 30 minutes behind IST. 9:00 AM IST = 9:30 PM CST (previous day).
CST is 11 hours 30 minutes behind IST at the moment. To convert IST to Houston Time, subtract 11 hours 30 minutes from the IST time: 9:00 AM IST = 9:30 PM CST (previous day).
IST (India Time) is used in India and Sri Lanka (UTC+5:30, no daylight saving time). Houston Time (Houston time) is used in Houston, USA.
IST here means India Standard Time, not Irish or Israel Standard Time.
IST to Houston Time time conversion table
IST to Houston Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| IST | Houston Time |
|---|---|
| 12:00 AM | 12:30 PM−1 |
| 1:00 AM | 1:30 PM−1 |
| 2:00 AM | 2:30 PM−1 |
| 3:00 AM | 3:30 PM−1 |
| 4:00 AM | 4:30 PM−1 |
| 5:00 AM | 5:30 PM−1 |
| 6:00 AM | 6:30 PM−1 |
| 7:00 AM | 7:30 PM−1 |
| IST | Houston Time |
|---|---|
| 8:00 AM | 8:30 PM−1 |
| 9:00 AM | 9:30 PM−1 |
| 10:00 AM | 10:30 PM−1 |
| 11:00 AM | 11:30 PM−1 |
| 12:00 PM | 12:30 AM |
| 1:00 PM | 1:30 AM |
| 2:00 PM | 2:30 AM |
| 3:00 PM | 3:30 AM |
| IST | Houston Time |
|---|---|
| 4:00 PM | 4:30 AM |
| 5:00 PM | 5:30 AM |
| 6:00 PM | 6:30 AM |
| 7:00 PM | 7:30 AM |
| 8:00 PM | 8:30 AM |
| 9:00 PM | 9:30 AM |
| 10:00 PM | 10:30 AM |
| 11:00 PM | 11:30 AM |
Conversion table from IST to Houston Time 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 Houston Time, −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 IST to Houston Time
Subtract 11 hours 30 minutes from the IST time to get Houston Time.
Example: 9:00 AM IST = 9:30 PM CST (previous day).
Across midnight: 1:00 AM IST = 1:30 PM CST (previous day). The date changes, so always check the day as well as the hour.
Time difference between IST and Houston Time
The time difference between IST and Houston Time 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:
- 1 Jan 2026 – 7 Mar 2026: Houston Time is 11 hours 30 minutes behind of IST.
- 8 Mar 2026 – 31 Oct 2026: Houston Time is 10 hours 30 minutes behind of IST.
- 1 Nov 2026 – 31 Dec 2026: Houston Time is 11 hours 30 minutes behind of IST.
IST and Houston Time during daylight saving time
- IST does not observe daylight saving time; it stays on UTC+5:30 all year.
- 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).
Best time for a meeting between IST and Houston Time
IST and Houston Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM IST, which is 7:30 PM CST.
IST to Houston Time FAQ
What is the time difference between IST and Houston Time?
Right now CST is 11 hours 30 minutes behind IST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM IST in Houston Time?
9:00 AM IST is 9:30 PM CST (previous day).
What is 12 PM (noon) IST in Houston Time?
12:00 PM IST is 12:30 AM CST.
Is Houston Time ahead of or behind IST?
CST is 11 hours 30 minutes behind IST, so it is earlier in Houston Time than in IST.
Does IST change for daylight saving time?
No. IST stays on the same offset all year, so conversions never shift for daylight saving 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.
What is the best time for a meeting between IST and Houston Time?
IST and Houston Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM IST, which is 7:30 PM CST.
Related conversions
Convert Houston Time to IST
Convert IST to other time zones
Convert other time zones to Houston Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.