IST to PST Time Zone Converter
India Standard Time to US Pacific Time lines up India's clock with Los Angeles, San Francisco, and Seattle — and it's the widest common India-US gap, always landing you on the previous day. Pacific is 13 hours 30 minutes behind India in winter and 12 hours 30 minutes behind in summer, because the US shifts to daylight time while India never changes. Morning in India is the night before on the West Coast.
Enter a date and time to convert.
Daylight saving is applied automatically for the date you pick. Labels like PST/EST name the zone (Pacific/Eastern); the real abbreviation shifts to PDT/EDT during daylight saving, and gmt here means London (GMT in winter, BST in summer) while utc stays fixed.
The time difference
US Pacific Time is 13 hours 30 minutes behind India in winter and 12 hours 30 minutes behind in summer — the widest of the usual India-US gaps. India (Kolkata, Mumbai, Delhi, Bangalore) never leaves UTC+5:30, but the West Coast springs forward on Mar 8, 2026 and falls back on Nov 1, 2026. Because only the US side moves, the gap shrinks by an hour over the summer.
A worked example
Take 9:00 AM in India. On Jan 15, 2026 that is 7:30 PM the night before — Wed, Jan 14 — in Los Angeles. On Jul 15, 2026 it's 8:30 PM on Tue, Jul 14. Watch the day closely: with a gap this wide, an India morning always lands on the previous calendar date on the West Coast. That day flip is the easiest mistake to make when booking an India-US call, so lock in the date, not just the hour.
Daylight saving & the abbreviation caveat
"PST" is the winter label. From spring to fall the West Coast runs on PDT (Pacific Daylight Time), an hour ahead, and locals just say "Pacific" or "PT" year-round. India never observes daylight saving — it stays at UTC+5:30 always — so every shift is on the US side. The converter picks the right Pacific offset for your exact date, which is why the summer answer differs by an hour.
When you'll use it
Scheduling a call between an India team and a Silicon Valley or Seattle office, timing a US product launch or live stream, joining a West Coast market event, or setting overlap hours for remote work — always confirming which calendar day the US side falls on.
Frequently asked questions
How far behind IST is Pacific Time?
13 hours 30 minutes in winter (PST) and 12 hours 30 minutes in summer (PDT). India stays fixed while the West Coast springs forward, so the gap narrows by an hour from spring to fall.
Why does 9 AM in India fall on the previous day in Los Angeles?
With a 13-plus-hour gap — the biggest of the common India-US pairs — subtracting from an India morning drops you well past midnight into the prior evening on the West Coast. Always confirm the date, not just the time.
Is PST the same as California time?
In winter, yes. From spring to fall the West Coast runs on PDT (Pacific Daylight Time), one hour ahead; locals just say 'Pacific' or 'PT' either way.