ICT to CT Time Converter
CT is 12 hours behind ICT. ICT is UTC+7:00, and The US Central states are currently on CDT (UTC-5:00).
Best Time to Call Between ICT and CT
Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 10:00 AM ICT, which is 7:00 PM to 10:00 PM CT.
both at work ICT only CT only neither — hours along the strip are ICT.
Common Times Converted
ICT on the left, CT on the right.
ICT to CT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| ICT | CT | Working hours |
|---|---|---|
| 12:00 AM | 12:00 PM prev day | CT only |
| 1:00 AM | 1:00 PM prev day | CT only |
| 2:00 AM | 2:00 PM prev day | CT only |
| 3:00 AM | 3:00 PM prev day | CT only |
| 4:00 AM | 4:00 PM prev day | CT only |
| 5:00 AM | 5:00 PM prev day | — |
| 6:00 AM | 6:00 PM prev day | — |
| 7:00 AM | 7:00 PM prev day | — |
| 8:00 AM | 8:00 PM prev day | — |
| 9:00 AM | 9:00 PM prev day | ICT only |
| 10:00 AM | 10:00 PM prev day | ICT only |
| 11:00 AM | 11:00 PM prev day | ICT only |
| 12:00 PM | 12:00 AM | ICT only |
| 1:00 PM | 1:00 AM | ICT only |
| 2:00 PM | 2:00 AM | ICT only |
| 3:00 PM | 3:00 AM | ICT only |
| 4:00 PM | 4:00 AM | ICT only |
| 5:00 PM | 5:00 AM | — |
| 6:00 PM | 6:00 AM | — |
| 7:00 PM | 7:00 AM | — |
| 8:00 PM | 8:00 AM | — |
| 9:00 PM | 9:00 AM | CT only |
| 10:00 PM | 10:00 AM | CT only |
| 11:00 PM | 11:00 AM | CT only |
What ICT and CT Actually Are
ICT — Indochina Time
Bangkok, Ho Chi Minh City, Hanoi, Phnom Penh, Vientiane. Standing at UTC+7:00 as written, and the region does not change its clocks, so that offset holds all year.
Indochina Time is shared across four countries, which makes South-East Asian scheduling unusually simple compared with Europe or the Americas.
CT — Central Time
Chicago, Houston, Dallas, Mexico City, Winnipeg. Standing at UTC-6:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to CST.
Central Time is the widest US zone by land area, stretching from the Gulf coast to the Canadian border, and it also covers Mexico City.
What This Means in Practice
The date changes mid-working-day
For 3 of the eight hours in a normal ICT working day, the equivalent CT time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.
This gap is not fixed
CT changes its clocks and ICT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Nearly opposite sides of the clock
At 12 hours apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.
Major Cities in Each Zone
Cities on ICT
Cities on CT
Frequently Asked Questions
What is the time difference between ICT and CT?
CT is 12 hours behind ICT. That is the live figure. Taken strictly as written, the gap between ICT and CT is 13 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM ICT in CT?
9:00 AM ICT is 9:00 PM the previous day CT.
What are the best hours to schedule a call between ICT and CT?
Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 7:00 AM to 10:00 AM ICT, which is 7:00 PM to 10:00 PM CT.
Does the difference between ICT and CT change during the year?
Yes. CT observes daylight saving and ICT does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.