India Standard Time
IST means UTC+05:30 throughout the year.
Other meanings: Israel Standard Time · Irish Standard Time.
TIME ZONE CONVERTER
IST to Chennai
Time Converter
Convert India Standard Time to Chennai, India. Compare dates, seasonal differences and meeting hours.
IST and Chennai have the same clock time throughout 2026.
9 AM IST = 9 AM Chennai
Selected date: November 4, 2026. Fixed abbreviations retain their stated UTC offsets.
THE QUICK REFERENCE
CSVIST to Chennai conversion table
November 4, 2026 · Date changes are marked.
View the full 24-hour table
| IST | Chennai |
|---|---|
| 12:00 AM | 12:00 AM |
| 1:00 AM | 1:00 AM |
| 2:00 AM | 2:00 AM |
| 3:00 AM | 3:00 AM |
| 4:00 AM | 4:00 AM |
| 5:00 AM | 5:00 AM |
| 6:00 AM | 6:00 AM |
| 7:00 AM | 7:00 AM |
| 8:00 AM | 8:00 AM |
| 9:00 AM | 9:00 AM |
| 10:00 AM | 10:00 AM |
| 11:00 AM | 11:00 AM |
| IST | Chennai |
|---|---|
| 12:00 PM | 12:00 PM |
| 1:00 PM | 1:00 PM |
| 2:00 PM | 2:00 PM |
| 3:00 PM | 3:00 PM |
| 4:00 PM | 4:00 PM |
| 5:00 PM | 5:00 PM |
| 6:00 PM | 6:00 PM |
| 7:00 PM | 7:00 PM |
| 8:00 PM | 8:00 PM |
| 9:00 PM | 9:00 PM |
| 10:00 PM | 10:00 PM |
| 11:00 PM | 11:00 PM |
Starting with the Chennai working day
These examples start on 2026-11-04 in Chennai.
09:00 Chennai09:00 →IST · 2026-11-04
17:00 Chennai17:00 →IST · 2026-11-04
Which time-zone meaning are we using?
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 IST to Chennai throughout 2026
09:00 in IST converts to 09:00 in Chennai on every date in 2026. The destination has the same calendar date.
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
DON’T LOSE A DAY
When does IST time become a different date in Chennai?
Your complete source day: 2026-11-04. Each range shows which destination date to use.
IST · 2026-11-0400:00–24:00UTC+05:30
Chennai · 2026-11-0400:00–24:00UTC+05:30 Same date
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
THE BIGGER PICTURE
2026Some things stay in sync.
The difference between IST and Chennai stays the same throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
0h
Neither selected clock changes its UTC offset during 2026.
CLOCK CHANGES
No upcoming clock adjustment
No clock change is published for either selected time zone in the next 400 days within our supported range.
PLAN BEYOND A SINGLE DAY
Daily CSVIST–Chennai working hours through 2026
Every date calculated with your working windows. 261 selected IST workdays; public holidays are not applied.
Least shared time8h
Most common8h
Most shared time8h
Days without a 60-min slot0 / 261
A start time that survives the whole year.
Start a 60-minute meeting in IST 09:00–16:00.
These starts fit both working windows on every selected IST workday in 2026, using a 15-minute start grid. The end of each range is the last valid start.
IST: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Chennai: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Calculation details and repeated hours
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
THE DETAILS THAT MATTER
IST to Chennai: useful answers
Does the IST–Chennai time difference change in 2026?
The difference stays constant throughout 2026: Chennai is the same local time compared with IST.
Does this conversion change the calendar date?
09:00 in IST on 2026-11-04 is 09:00 in Chennai on 2026-11-04. This selected time stays on the same date in both places. Other times can cross midnight.
Can IST and Chennai meet during working hours?
Your selected working windows share 8h on 2026-11-04. The planner above checks the whole meeting duration and shows suitable start times. Edit the windows to match your team.
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology