Bangkok MumbaiICT to IST Time Converter
Bangkok (ICT, UTC+7) is currently 1 hour 30 minutes ahead of Mumbai (IST, UTC+5:30). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in Bangkok, it's the same day in Mumbai.
Bangkok (ICT) runs 1 hour 30 minutes ahead of Mumbai (IST). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- −1h 30m
- ICT
- UTC+7
- IST
- UTC+5:30
- Best call window
- 11:00 AM ICT
ICT to IST conversion table
The next 12 hours in ICT and the matching local time in IST. The current hour is highlighted; drag the converter's slider and the table follows.
| ICT | IST |
|---|---|
| NOW Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Best time to meet between ICT & IST
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair — every combination is a live tool, not an article.
From ICT
To IST
One source of truth — for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am ICT time in IST?", it can cite the exact, DST-aware result — not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "ICT → IST",
"url": "https://worldclock.pro/en/convert/ict-to-ist",
"from": {
"name": "ICT",
"type": "timezone",
"abbreviation": "ICT",
"daylightAbbreviation": null,
"iana": "Asia/Bangkok",
"standardUtcOffset": "+07:00",
"daylightUtcOffset": null,
"referenceCity": "Bangkok"
},
"to": {
"name": "IST",
"type": "timezone",
"abbreviation": "IST",
"daylightAbbreviation": null,
"iana": "Asia/Kolkata",
"standardUtcOffset": "+05:30",
"daylightUtcOffset": null,
"referenceCity": "Mumbai"
},
"currentDifferenceMinutes": -90,
"possibleDifferencesMinutes": [
-90
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between ICT and IST?
ICT is currently 1 hour 30 minutes ahead of IST. ICT is on ICT (UTC+7) and IST is on IST (UTC+5:30). The difference can change when either side starts or ends daylight saving time.
Is IST ahead of or behind ICT?
IST is currently 1 hour 30 minutes behind ICT.
When it is 9:00 AM in ICT, what time is it in IST?
When it is 9:00 AM on a Monday in ICT, it is 7:30 AM in IST.
Do ICT and IST observe daylight saving time?
ICT does not observe daylight saving time. IST does not observe daylight saving time.
How do I convert ICT time to IST time?
Subtract 1 hour 30 minutes from any time in ICT to get the time in IST. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
More world clock & time zone apps
From the team behind worldclock.pro — global scheduling on iPhone & iPad, a Mac menu-bar clock, and precision Zulu/UTC for aviation, military, and HAM radio.
World Clock Master
Global time zone scheduling for international teams, travelers, and professionals who coordinate across cities and continents.
View app
World Clock Pro
The same powerful time zone converter, meeting scheduler, and world clock — living in your Mac's menu bar.
View app