Timezone conversion
IST to Houston Time — Convert India Standard Time to Houston
Houston is currently 10 hours and 30 minutes behind IST. The gap shifts across the year: around January Houston is 11 hours and 30 minutes behind IST, and around July it is 10 hours and 30 minutes behind IST, because one or both zones observe daylight saving.
Houston is currently 10 hours and 30 minutes behind IST.
Abbreviation disambiguation
On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.
Interactive converter
12:00PM
Select both cities to see the converted time.
Full IST to Houston conversion table
| IST | Houston |
|---|---|
| 12:00 AM | 1:30 PM(previous day) |
| 1:00 AM | 2:30 PM(previous day) |
| 2:00 AM | 3:30 PM(previous day) |
| 3:00 AM | 4:30 PM(previous day) |
| 4:00 AM | 5:30 PM(previous day) |
| 5:00 AM | 6:30 PM(previous day) |
| 6:00 AM | 7:30 PM(previous day) |
| 7:00 AM | 8:30 PM(previous day) |
| 8:00 AM | 9:30 PM(previous day) |
| 9:00 AM | 10:30 PM(previous day) |
| 10:00 AM | 11:30 PM(previous day) |
| 11:00 AM | 12:30 AM |
| 12:00 PM | 1:30 AM |
| 1:00 PM | 2:30 AM |
| 2:00 PM | 3:30 AM |
| 3:00 PM | 4:30 AM |
| 4:00 PM | 5:30 AM |
| 5:00 PM | 6:30 AM |
| 6:00 PM | 7:30 AM |
| 7:00 PM | 8:30 AM |
| 8:00 PM | 9:30 AM |
| 9:00 PM | 10:30 AM |
| 10:00 PM | 11:30 AM |
| 11:00 PM | 12:30 PM |
Daylight saving and how the gap changes
Around January Houston is 11 hours and 30 minutes behind IST. Around July it is 10 hours and 30 minutes behind IST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.
Frequently asked questions
- Is Houston ahead of or behind IST right now?
- Houston is currently 10 hours and 30 minutes behind IST.
- What is the current IST to Houston time difference?
- Right now the gap is 10 hours and 30 minutes — Houston is 10 hours and 30 minutes behind IST.
- Does the IST → Houston offset change during the year?
- Yes. Around January Houston is 11 hours and 30 minutes behind IST; around July it is 10 hours and 30 minutes behind IST. The converter above always reflects the correct offset for the date you pick.
- Does IST observe daylight saving time?
- No — India Standard Time stays at a fixed UTC offset year-round.
- Does Houston observe daylight saving time?
- Yes — Houston observes DST, so its UTC offset shifts by 1 hour between winter and summer.
- What time is 3 AM IST in Houston?
- 3:00 AM IST is 4:30 PM (previous day) Houston.
- What time is 8 AM IST in Houston?
- 8:00 AM IST is 9:30 PM (previous day) Houston.
- What time is 9 AM IST in Houston?
- 9:00 AM IST is 10:30 PM (previous day) Houston.
- What time is 10 AM IST in Houston?
- 10:00 AM IST is 11:30 PM (previous day) Houston.
- What time is 11 AM IST in Houston?
- 11:00 AM IST is 12:30 AM Houston.
- What time is 12 PM (noon) IST in Houston?
- 12:00 PM IST is 1:30 AM Houston.
- What time is 2 PM IST in Houston?
- 2:00 PM IST is 3:30 AM Houston.
- What time is 3 PM IST in Houston?
- 3:00 PM IST is 4:30 AM Houston.
- What time is 4 PM IST in Houston?
- 4:00 PM IST is 5:30 AM Houston.
- What time is 5 PM IST in Houston?
- 5:00 PM IST is 6:30 AM Houston.
- What time is 9 PM IST in Houston?
- 9:00 PM IST is 10:30 AM Houston.
- What time is 10 PM IST in Houston?
- 10:00 PM IST is 11:30 AM Houston.
- When is the best time to schedule a call between IST and Houston?
- IST and Houston have no direct 09:00–17:00 overlap on the same calendar day. Consider early-morning or late-evening slots on one side, or an asynchronous handoff.
- What time zone does IST refer to?
- IST refers to India Standard Time (IANA: Asia/Kolkata).
- What time zone does Houston refer to?
- Houston uses the America/Chicago time zone.
- Is IST on this page the same as other zones that share the letters "IST"?
- On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.