CT to ICT Time Converter
ICT is 12 hours ahead of CT. The US Central states are currently on CDT (UTC-5:00), and ICT is UTC+7:00.
Best Time to Call Between CT and ICT
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 CT, which is 7:00 PM to 10:00 PM ICT.
both at work CT only ICT only neither — hours along the strip are CT.
Common Times Converted
CT on the left, ICT on the right.
CT to ICT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| CT | ICT | Working hours |
|---|---|---|
| 12:00 AM | 12:00 PM | ICT only |
| 1:00 AM | 1:00 PM | ICT only |
| 2:00 AM | 2:00 PM | ICT only |
| 3:00 AM | 3:00 PM | ICT only |
| 4:00 AM | 4:00 PM | ICT only |
| 5:00 AM | 5:00 PM | — |
| 6:00 AM | 6:00 PM | — |
| 7:00 AM | 7:00 PM | — |
| 8:00 AM | 8:00 PM | — |
| 9:00 AM | 9:00 PM | CT only |
| 10:00 AM | 10:00 PM | CT only |
| 11:00 AM | 11:00 PM | CT only |
| 12:00 PM | 12:00 AM next day | CT only |
| 1:00 PM | 1:00 AM next day | CT only |
| 2:00 PM | 2:00 AM next day | CT only |
| 3:00 PM | 3:00 AM next day | CT only |
| 4:00 PM | 4:00 AM next day | CT only |
| 5:00 PM | 5:00 AM next day | — |
| 6:00 PM | 6:00 AM next day | — |
| 7:00 PM | 7:00 AM next day | — |
| 8:00 PM | 8:00 AM next day | — |
| 9:00 PM | 9:00 AM next day | ICT only |
| 10:00 PM | 10:00 AM next day | ICT only |
| 11:00 PM | 11:00 AM next day | ICT only |
What CT and ICT Actually Are
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.
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.
What This Means in Practice
The date changes mid-working-day
For 5 of the eight hours in a normal CT working day, the equivalent ICT 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 CT
Cities on ICT
Frequently Asked Questions
What is the time difference between CT and ICT?
ICT is 12 hours ahead of CT. That is the live figure. Taken strictly as written, the gap between CT and ICT is 13 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM CT in ICT?
9:00 AM CT is 9:00 PM ICT.
What are the best hours to schedule a call between CT and ICT?
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 CT, which is 7:00 PM to 10:00 PM ICT.
Does the difference between CT and ICT 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.