Timezone conversion
CT to IST Time — Convert Central Time (US) to India Standard Time
IST is currently 10 hours and 30 minutes ahead of CT. The gap shifts across the year: around January IST is 11 hours and 30 minutes ahead of CT, and around July it is 10 hours and 30 minutes ahead of CT, because one or both zones observe daylight saving.
IST is currently 10 hours and 30 minutes ahead of CT.
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 CT to IST conversion table
| CT | 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 CT. Around July it is 10 hours and 30 minutes ahead of CT. 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 CT right now?
- IST is currently 10 hours and 30 minutes ahead of CT.
- What is the current CT to IST time difference?
- Right now the gap is 10 hours and 30 minutes — IST is 10 hours and 30 minutes ahead of CT.
- Does the CT → IST offset change during the year?
- Yes. Around January IST is 11 hours and 30 minutes ahead of CT; around July it is 10 hours and 30 minutes ahead of CT. The converter above always reflects the correct offset for the date you pick.
- Does CT observe daylight saving time?
- Yes — Central Time (US) 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 CT in IST?
- 3:00 AM CT is 1:30 PM IST.
- What time is 8 AM CT in IST?
- 8:00 AM CT is 6:30 PM IST.
- What time is 9 AM CT in IST?
- 9:00 AM CT is 7:30 PM IST.
- What time is 10 AM CT in IST?
- 10:00 AM CT is 8:30 PM IST.
- What time is 11 AM CT in IST?
- 11:00 AM CT is 9:30 PM IST.
- What time is 12 PM (noon) CT in IST?
- 12:00 PM CT is 10:30 PM IST.
- What time is 2 PM CT in IST?
- 2:00 PM CT is 12:30 AM (next day) IST.
- What time is 3 PM CT in IST?
- 3:00 PM CT is 1:30 AM (next day) IST.
- What time is 4 PM CT in IST?
- 4:00 PM CT is 2:30 AM (next day) IST.
- What time is 5 PM CT in IST?
- 5:00 PM CT is 3:30 AM (next day) IST.
- What time is 9 PM CT in IST?
- 9:00 PM CT is 7:30 AM (next day) IST.
- What time is 10 PM CT in IST?
- 10:00 PM CT is 8:30 AM (next day) IST.
- When is the best time to schedule a call between CT and IST?
- CT 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 CT refer to?
- CT refers to Central Time (US) (IANA: America/Chicago).
- 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.