Pacific Time is 12 hours 30 minutes behind India Standard Time right now (until Oct 31, 2026); the gap changes to 13 hours 30 minutes when clocks change for daylight saving time. So 12:00 PM IST = 11:30 PM (previous day) PDT at the moment. (Pacific Time is on PDT for daylight saving time right now.)
IST to PST conversion table
| IST | PDT when IST is IST | PST when IST is IST |
|---|---|---|
| 12:00 AM | 11:30 AM −1 day | 10:30 AM −1 day |
| 1:00 AM | 12:30 PM −1 day | 11:30 AM −1 day |
| 2:00 AM | 1:30 PM −1 day | 12:30 PM −1 day |
| 3:00 AM | 2:30 PM −1 day | 1:30 PM −1 day |
| 4:00 AM | 3:30 PM −1 day | 2:30 PM −1 day |
| 5:00 AM | 4:30 PM −1 day | 3:30 PM −1 day |
| 6:00 AM | 5:30 PM −1 day | 4:30 PM −1 day |
| 7:00 AM | 6:30 PM −1 day | 5:30 PM −1 day |
| 8:00 AM | 7:30 PM −1 day | 6:30 PM −1 day |
| 9:00 AM | 8:30 PM −1 day | 7:30 PM −1 day |
| 10:00 AM | 9:30 PM −1 day | 8:30 PM −1 day |
| 11:00 AM | 10:30 PM −1 day | 9:30 PM −1 day |
| 12:00 PM | 11:30 PM −1 day | 10:30 PM −1 day |
| 1:00 PM | 12:30 AM | 11:30 PM −1 day |
| 2:00 PM | 1:30 AM | 12:30 AM |
| 3:00 PM | 2:30 AM | 1:30 AM |
| 4:00 PM | 3:30 AM | 2:30 AM |
| 5:00 PM | 4:30 AM | 3:30 AM |
| 6:00 PM | 5:30 AM | 4:30 AM |
| 7:00 PM | 6:30 AM | 5:30 AM |
| 8:00 PM | 7:30 AM | 6:30 AM |
| 9:00 PM | 8:30 AM | 7:30 AM |
| 10:00 PM | 9:30 AM | 8:30 AM |
| 11:00 PM | 10:30 AM | 9:30 AM |
IST and PST difference through 2027
The gap between the two zones on each date range, including daylight saving time changes:
| Dates | India Standard Time | Pacific Time | Difference |
|---|---|---|---|
| Sep 30, 2026 – Oct 31, 2026 | IST (UTC+5:30) | PDT (UTC−7) | PST 12 hours 30 minutes behind |
| Nov 1, 2026 – Mar 13, 2027 | IST (UTC+5:30) | PST (UTC−8) | PST 13 hours 30 minutes behind |
| Mar 14, 2027 – Nov 6, 2027 | IST (UTC+5:30) | PDT (UTC−7) | PST 12 hours 30 minutes behind |
| Nov 7, 2027 – Dec 31, 2027 | IST (UTC+5:30) | PST (UTC−8) | PST 13 hours 30 minutes behind |
Best time to meet or call
- When PST is 12 hours 30 minutes behind IST: Standard 9 AM–5 PM working hours don't overlap. The best compromise is usually early morning in India Standard Time (8:00 AM–9:00 AM), which is 7:30 PM–8:30 PM in Pacific Time.
- When PST is 13 hours 30 minutes behind IST: Standard 9 AM–5 PM working hours don't overlap. The best compromise is usually early morning in India Standard Time (8:00 AM–9:00 AM), which is 6:30 PM–7:30 PM in Pacific Time.
About India Standard Time (IST)
India uses one time zone, IST (UTC+5:30), all year. India does not observe daylight saving time, so its difference from the US and UK changes when they change their clocks. It's used in all of India, including New Delhi, Mumbai, Bengaluru, Hyderabad, Chennai and Kolkata.
About Pacific Time (PST)
Pacific Time uses PST (UTC−8) in winter and PDT (UTC−7) during daylight saving time. It's used in Los Angeles, San Francisco, San Diego, Seattle, Portland, Las Vegas and Vancouver.
Frequently asked questions
What time is 12 PM IST in PST?
12:00 PM IST is 11:30 PM (previous day) PDT right now (Sep 30, 2026 to Oct 31, 2026). The answer changes when either zone changes its clocks for daylight saving time.
How many hours ahead or behind is PST from IST?
Currently 12 hours 30 minutes behind IST. During the year the difference is 12 hours 30 minutes behind IST or 13 hours 30 minutes behind IST, depending on daylight saving time. See the table on this page for exact dates.
Does IST change for daylight saving time?
No. India uses one time zone, IST (UTC+5:30), all year. India does not observe daylight saving time, so its difference from the US and UK changes when they change their clocks.
Does PST change for daylight saving time?
Yes. Pacific Time uses PST (UTC−8) in winter and PDT (UTC−7) during daylight saving time.
What is the best time for a call between IST and PST?
Working hours don't overlap. Early morning in India Standard Time or evening in Pacific Time usually works best.
More time zone conversions
- PST to IST (reverse)
- EST to PST
- CST to PST
- MST to PST
- IST to EST
- IST to CST
- IST to GMT
- IST to UTC
- GMT to PST
- All time zones
Sources
Reviewed by Gurmej Singh, Founder, Divy Digital Hub · Last reviewed: Wednesday, September 30, 2026. All calculations run in your browser. Editorial policy.