IST to PST/PDT time converter

PST/PDT is 8 hours behind IST. When it is 9:00 AM in IST, it is 1:00 AM in PST/PDT.

IST UTC+1

Tuesday, October 20, 2026

PST/PDT PDT

Monday, October 19, 2026

IST
Irish Standard Time
Tue, Oct 20
UTC+1
PST/PDT
Pacific Standard Time
Mon, Oct 19
PDTUTC-7-8h
Finding your time zone…
Shared working hours (9:00–18:00)

IST to PST/PDT conversion table

Every hour of today in IST and the matching time in PST/PDT. Light rows are typical working hours (9:00–18:00).

ISTPST/PDT
12:00 AM4:00 PM−1 day
1:00 AM5:00 PM−1 day
2:00 AM6:00 PM−1 day
3:00 AM7:00 PM−1 day
4:00 AM8:00 PM−1 day
5:00 AM9:00 PM−1 day
6:00 AM10:00 PM−1 day
7:00 AM11:00 PM−1 day
8:00 AM12:00 AM
9:00 AM1:00 AM
10:00 AM2:00 AM
11:00 AM3:00 AM
12:00 PM4:00 AM
1:00 PM5:00 AM
2:00 PM6:00 AM
3:00 PM7:00 AM
4:00 PM8:00 AM
5:00 PM9:00 AM
6:00 PM10:00 AM
7:00 PM11:00 AM
8:00 PM12:00 PM
9:00 PM1:00 PM
10:00 PM2:00 PM
11:00 PM3:00 PM

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in IST (9:00 AM – 10:00 AM in PST/PDT).

Daylight saving time and the difference

The difference changes during the year because IST and PST/PDT switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: -8h
  • Nov 1, 2026 – Mar 14, 2027: -9h
  • Mar 14, 2027 – Oct 20, 2027: -8h

More conversions

PST to IST (Ireland)IST (Ireland) to UTCIST (Ireland) to GMTIST (Ireland) to ESTIST (Ireland) to CSTIST (Ireland) to MSTIST (Ireland) to CETIST (Ireland) to MSKIST (Ireland) to GSTIST (Ireland) to PKTIST (Ireland) to ISTIST (Ireland) to SGTIST (Ireland) to PHT
UTC to PSTGMT to PSTEST to PSTCST to PSTMST to PSTCET to PSTMSK to PSTGST to PSTPKT to PSTIST to PSTSGT to PSTPHT to PST

Questions and answers

What is the time difference between IST and PST/PDT?

PST/PDT is 8 hours behind IST.

What time is it in PST/PDT when it is 9 AM in IST?

When it is 9:00 AM in IST, it is 1:00 AM in PST/PDT.

When is the best time to call PST/PDT from IST?

Both sides are at work from 5:00 PM – 6:00 PM in IST (9:00 AM – 10:00 AM in PST/PDT).

Does the time difference between IST and PST/PDT change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.