Offset
The time difference between Chennai and Pacific Time is 12.5 hours.
Chennai (IST) is ahead of Pacific Time (PDT).
IST: UTC+5:30
PDT: UTC-7
Pacific Time is currently observing daylight saving time; Chennai is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Chennai and Pacific Time don't overlap on the same weekday. Pacific Time is 12 hours behind Chennai.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Chennai uses India Standard Time (IST). To call India, dial +91.
Pacific Time is also known as PST, or PDT. To call United States, dial +1.
Pacific Time is approximately 8,950 miles north of Chennai.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Chennai | PST | Day |
|---|---|---|
| 12:00 am | 11:30 am | -1 day |
| 1:00 am | 12:30 pm | -1 day |
| 2:00 am | 1:30 pm | -1 day |
| 3:00 am | 2:30 pm | -1 day |
| 4:00 am | 3:30 pm | -1 day |
| 5:00 am | 4:30 pm | -1 day |
| 6:00 am | 5:30 pm | -1 day |
| 7:00 am | 6:30 pm | -1 day |
| 8:00 am | 7:30 pm | -1 day |
| 9:00 am | 8:30 pm | -1 day |
| 10:00 am | 9:30 pm | -1 day |
| 11:00 am | 10:30 pm | -1 day |
| 12:00 pm | 11:30 pm | -1 day |
| 1:00 pm | 12:30 am | Same day |
| 2:00 pm | 1:30 am | Same day |
| 3:00 pm | 2:30 am | Same day |
| 4:00 pm | 3:30 am | Same day |
| 5:00 pm | 4:30 am | Same day |
| 6:00 pm | 5:30 am | Same day |
| 7:00 pm | 6:30 am | Same day |
| 8:00 pm | 7:30 am | Same day |
| 9:00 pm | 8:30 am | Same day |
| 10:00 pm | 9:30 am | Same day |
| 11:00 pm | 10:30 am | Same day |
Daylight saving time
Pacific Time observes daylight saving time; Chennai does not. The offset between the two zones changes when Pacific Time transitions: on Sunday, November 1, 2026, clocks fall back from PDT to PST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:42 AM
- Sunset
- 6:34 PM
- Day length
- 12h 52m
- Sunrise
- 5:43 AM
- Sunset
- 8:02 PM
- Day length
- 14h 20m
Daylight overlap: 2h 50m — 5:42 AM–8:32 AM in Chennai (5:12 PM–8:02 PM in Pacific Time). Both locations are in daylight during this window.
Cities in these zones
Other cities in India Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in India Standard Time
- BOM
- NMI
- DEL
- BLR
- HYD
- AMD
- MAA
- CCU
- STV
- PNQ
Airports in Pacific Time
- BUR
- HHR
- LAX
- LGB
- SNA
- CLD
- SAN
- TIJ
- OAK
- SFO
Related conversions
Common conversions
- What is 9:00 am Chennai in PST?
- 9:00 am Chennai is 8:30 pm PST, the previous day.
- What is 12:00 pm Chennai in PST?
- 12:00 pm Chennai is 11:30 pm PST, the previous day.
- What is 12:30 pm Chennai in PST?
- 12:30 pm Chennai is 12:00 am PST.
- What is 2:00 pm Chennai in PST?
- 2:00 pm Chennai is 1:30 am PST.
- What is 5:00 pm Chennai in PST?
- 5:00 pm Chennai is 4:30 am PST.
- What is 11:30 pm Chennai in PST?
- 11:30 pm Chennai is 11:00 am PST.