Timezone conversion
Houston to IST Time — Convert Houston to India Standard Time
IST is currently 10 hours and 30 minutes ahead of Houston. The gap shifts across the year: around January IST is 11 hours and 30 minutes ahead of Houston, and around July it is 10 hours and 30 minutes ahead of Houston, because one or both zones observe daylight saving.
IST is currently 10 hours and 30 minutes ahead of Houston.
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 Houston to IST conversion table
| Houston | IST |
|---|---|
| 12:00 AM | 10:30 AM |
| 1:00 AM | 11:30 AM |
| 2:00 AM | 12:30 PM |
| 3:00 AM | 1:30 PM |
| 4:00 AM | 2:30 PM |
| 5:00 AM | 3:30 PM |
| 6:00 AM | 4:30 PM |
| 7:00 AM | 5:30 PM |
| 8:00 AM | 6:30 PM |
| 9:00 AM | 7:30 PM |
| 10:00 AM | 8:30 PM |
| 11:00 AM | 9:30 PM |
| 12:00 PM | 10:30 PM |
| 1:00 PM | 11:30 PM |
| 2:00 PM | 12:30 AM(next day) |
| 3:00 PM | 1:30 AM(next day) |
| 4:00 PM | 2:30 AM(next day) |
| 5:00 PM | 3:30 AM(next day) |
| 6:00 PM | 4:30 AM(next day) |
| 7:00 PM | 5:30 AM(next day) |
| 8:00 PM | 6:30 AM(next day) |
| 9:00 PM | 7:30 AM(next day) |
| 10:00 PM | 8:30 AM(next day) |
| 11:00 PM | 9:30 AM(next day) |
Daylight saving and how the gap changes
Around January IST is 11 hours and 30 minutes ahead of Houston. Around July it is 10 hours and 30 minutes ahead of Houston. 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 IST ahead of or behind Houston right now?
- IST is currently 10 hours and 30 minutes ahead of Houston.
- What is the current Houston to IST time difference?
- Right now the gap is 10 hours and 30 minutes — IST is 10 hours and 30 minutes ahead of Houston.
- Does the Houston → IST offset change during the year?
- Yes. Around January IST is 11 hours and 30 minutes ahead of Houston; around July it is 10 hours and 30 minutes ahead of Houston. The converter above always reflects the correct offset for the date you pick.
- Does Houston observe daylight saving time?
- Yes — Houston observes DST, so its UTC offset shifts by 1 hour between winter and summer.
- Does IST observe daylight saving time?
- No — India Standard Time stays at a fixed UTC offset year-round.
- What time is 3 AM Houston in IST?
- 3:00 AM Houston is 1:30 PM IST.
- What time is 8 AM Houston in IST?
- 8:00 AM Houston is 6:30 PM IST.
- What time is 9 AM Houston in IST?
- 9:00 AM Houston is 7:30 PM IST.
- What time is 10 AM Houston in IST?
- 10:00 AM Houston is 8:30 PM IST.
- What time is 11 AM Houston in IST?
- 11:00 AM Houston is 9:30 PM IST.
- What time is 12 PM (noon) Houston in IST?
- 12:00 PM Houston is 10:30 PM IST.
- What time is 2 PM Houston in IST?
- 2:00 PM Houston is 12:30 AM (next day) IST.
- What time is 3 PM Houston in IST?
- 3:00 PM Houston is 1:30 AM (next day) IST.
- What time is 4 PM Houston in IST?
- 4:00 PM Houston is 2:30 AM (next day) IST.
- What time is 5 PM Houston in IST?
- 5:00 PM Houston is 3:30 AM (next day) IST.
- What time is 9 PM Houston in IST?
- 9:00 PM Houston is 7:30 AM (next day) IST.
- What time is 10 PM Houston in IST?
- 10:00 PM Houston is 8:30 AM (next day) IST.
- When is the best time to schedule a call between Houston and IST?
- Houston and IST 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 Houston refer to?
- Houston uses the America/Chicago time zone.
- What time zone does IST refer to?
- IST refers to India Standard Time (IANA: Asia/Kolkata).
- 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.