ICT to UTC Time Converter
UTC is 7 hours behind ICT. ICT is UTC+7:00, and UTC is the zero point, UTC±00:00.
Best Time to Call Between ICT and UTC
Both zones are inside normal business hours between 4:00 PM and 5:00 PM ICT — that's 9:00 AM to 10:00 AM UTC. That's a 1-hour window.
both at work ICT only UTC only neither — hours along the strip are ICT.
Common Times Converted
ICT on the left, UTC on the right.
ICT to UTC: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| ICT | UTC | Working hours |
|---|---|---|
| 12:00 AM | 5:00 PM prev day | — |
| 1:00 AM | 6:00 PM prev day | — |
| 2:00 AM | 7:00 PM prev day | — |
| 3:00 AM | 8:00 PM prev day | — |
| 4:00 AM | 9:00 PM prev day | — |
| 5:00 AM | 10:00 PM prev day | — |
| 6:00 AM | 11:00 PM prev day | — |
| 7:00 AM | 12:00 AM | — |
| 8:00 AM | 1:00 AM | — |
| 9:00 AM | 2:00 AM | ICT only |
| 10:00 AM | 3:00 AM | ICT only |
| 11:00 AM | 4:00 AM | ICT only |
| 12:00 PM | 5:00 AM | ICT only |
| 1:00 PM | 6:00 AM | ICT only |
| 2:00 PM | 7:00 AM | ICT only |
| 3:00 PM | 8:00 AM | ICT only |
| 4:00 PM | 9:00 AM | Both zones |
| 5:00 PM | 10:00 AM | UTC only |
| 6:00 PM | 11:00 AM | UTC only |
| 7:00 PM | 12:00 PM | UTC only |
| 8:00 PM | 1:00 PM | UTC only |
| 9:00 PM | 2:00 PM | UTC only |
| 10:00 PM | 3:00 PM | UTC only |
| 11:00 PM | 4:00 PM | UTC only |
What ICT and UTC 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.
UTC — Coordinated Universal Time
The global reference standard. Aviation, computing and science run on it. Standing at UTC as written, and the region does not change its clocks, so that offset holds all year.
UTC is not a place. It is a computed standard, kept within a second of mean solar time at Greenwich by atomic clocks, and it is the reference every other zone is defined against.
What This Means in Practice
A gap you can rely on
Neither region changes its clocks, so this difference holds every day of the year. A recurring meeting booked once stays correct — worth knowing, because most cross-border pairs cannot say that.
Major Cities in Each Zone
Cities on ICT
Frequently Asked Questions
What is the time difference between ICT and UTC?
UTC is 7 hours behind ICT.
What is 9:00 AM ICT in UTC?
9:00 AM ICT is 2:00 AM UTC.
What are the best hours to schedule a call between ICT and UTC?
Between 4:00 PM and 5:00 PM ICT, which is 9:00 AM to 10:00 AM UTC. Both sides are inside normal business hours through that window.
Does the difference between ICT and UTC change during the year?
No. Neither region changes its clocks, so this gap is fixed all year round.