PST to IST Converter
IST is 13 hours 30 minutes ahead of PST. During US PDT (summer), the gap narrows to 12 hours 30 minutes.
Daylight saving note: During US PDT (March–November), the gap narrows to 12h 30m. India never observes DST.
PST/PDT to IST Conversion Table
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇺🇸 PST/PDT | 🇮🇳 PST → ISTUTC-8 to UTC+5:30 | 🇮🇳 PDT → ISTUTC-7 to UTC+5:30 | Note |
|---|---|---|---|
| 00:00 | 1:30 PM | 12:30 PM | |
| 01:00 | 2:30 PM | 1:30 PM | |
| 02:00 | 3:30 PM | 2:30 PM | |
| 03:00 | 4:30 PM | 3:30 PM | |
| 04:00 | 5:30 PM | 4:30 PM | |
| 05:00 | 6:30 PM | 5:30 PM | |
| 06:00 | 7:30 PM | 6:30 PM | |
| 07:00 | 8:30 PM | 7:30 PM | |
| 08:00 | 9:30 PM | 8:30 PM | |
| 09:00 | 10:30 PM | 9:30 PM | |
| 10:00 | 11:30 PM | 10:30 PM | |
| 11:00 | 12:30 AM | 11:30 PM | next day |
| 12:00 | 1:30 AM | 12:30 AM | next day |
| 13:00 | 2:30 AM | 1:30 AM | next day |
| 14:00 | 3:30 AM | 2:30 AM | next day |
| 15:00 | 4:30 AM | 3:30 AM | next day |
| 16:00 | 5:30 AM | 4:30 AM | next day |
| 17:00 | 6:30 AM | 5:30 AM | next day |
| 18:00 | 7:30 AM | 6:30 AM | next day |
| 19:00 | 8:30 AM | 7:30 AM | next day |
| 20:00 | 9:30 AM | 8:30 AM | next day |
| 21:00 | 10:30 AM | 9:30 AM | next day |
| 22:00 | 11:30 AM | 10:30 AM | next day |
| 23:00 | 12:30 PM | 11:30 AM | next day |
* "next day" = converted time falls on the following calendar day.
Best Hours to Schedule Pacific Standard Time–India Standard Time Calls
The West Coast–India overlap is extremely tight. India business hours (9 AM–6 PM IST) correspond to 7:30 PM–4:30 AM PST — entirely outside normal US West Coast working hours. The two realistic options are a very early morning India call (7:00–8:00 AM IST = 5:30–6:30 PM PST prior day) or relying on async communication.
About Pacific Standard Time (PST/PDT)
Pacific Standard Time (PST, UTC-8) covers the US West Coast. During summer (March–November), the region switches to PDT (UTC-7) instead. Silicon Valley, Hollywood, and Seattle all run on Pacific Time. At 13.5 hours behind India in winter (12.5 hours in summer), Pacific Time has the widest gap with India of the four main mainland US time zones.
About India Standard Time (IST)
India Standard Time (IST, UTC+5:30) covers all of India year-round without DST. The 13.5-hour PST gap means that when California engineers end their workday at 5 PM PST, it is already 6:30 AM next morning in Bangalore — India's next business day has begun.
How to Avoid Pacific Standard Time–India Standard Time Conversion Mistakes
India Standard Time is already on the next calendar day from these PST/PDT times onward: 10:30 AM for PST → IST, 11:30 AM for PDT → IST. For example, 11:00 PM PST/PDT is 12:30 PM in India Standard Time on the next day (PST → IST).
Abbreviations can be ambiguous here: Pacific Standard Time switches between PST and PDT across the year, while India Standard Time stays on IST year-round. City names and IANA time zones (America/Los_Angeles and Asia/Kolkata) are safer for exact scheduling if you're automating anything, since they resolve the right abbreviation automatically instead of needing a manual seasonal check.
Worked Example: A Pacific Afternoon Call With India
If you're on the West Coast, an 8:00 AM Pacific start is 9:30 PM in India on PST and 8:30 PM on PDT, and it's the evening of the same day. India's 5:00 PM is 3:30 AM on the West Coast in winter and 4:30 AM in summer.
The difference comes from the US side, since India doesn't change its clocks. Check the date near the second Sunday in March and the first Sunday in November.
Frequently Asked Questions
What is the PST to IST time difference?
IST is 13 hours 30 minutes ahead of PST. During US Pacific Daylight Time (PDT, March–November), the gap is 12 hours 30 minutes. India does not observe DST, so the change comes entirely from the US side.
What time is 9 AM PST in IST?
9:00 AM PST is 10:30 PM IST (same day). During US PDT, 9:00 AM PDT is 9:30 PM IST. California mornings correspond to late evening in India.
Is there any overlap between PST and IST working hours?
Almost none. India business hours (9 AM–6 PM IST) correspond to 7:30 PM–4:30 AM PST — well outside normal US working hours. A very early morning India call or a late evening PST call are the two realistic ways to find a shared window.
What time should a California company call India?
The least-bad option for PST-IST calls is 5:30–7:30 PM PST (7:00–9:00 AM IST next day in India). This requires late-ish California hours and early morning in India. There is no window where both sides are in standard 9-5 hours.