This IST to PST converter turns any time in India Standard Time (IST) into Pacific Standard Time (PST), using your device clock so daylight saving is applied automatically. PST is 13 hours 30 minutes behind IST when both zones are on standard time, and 12 hours 30 minutes behind during the summer months when clocks have shifted. IST is UTC+5:30; PST is UTC−8 (PDT: UTC−7).
IST covers Mumbai, Delhi, Bengaluru; PST covers Los Angeles, San Francisco, Seattle. Because only PST observes daylight saving time, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
IST and PST UTC offsets
IST
UTC+5:30
India Standard Time
No daylight saving time
PST
UTC−8
Pacific Standard Time
PDT UTC−7 from March 8 to November 1, 2026
IST to PST conversion table (standard time)
| IST | PST |
|---|---|
| 12 am | 10:30 amprevious day |
| 3 am | 1:30 pmprevious day |
| 6 am | 4:30 pmprevious day |
| 8 am | 6:30 pmprevious day |
| 9 am | 7:30 pmprevious day |
| 10 am | 8:30 pmprevious day |
| 11 am | 9:30 pmprevious day |
| 12 pm | 10:30 pmprevious day |
| 1 pm | 11:30 pmprevious day |
| 2 pm | 12:30 am |
| 3 pm | 1:30 am |
| 4 pm | 2:30 am |
| 5 pm | 3:30 am |
| 6 pm | 4:30 am |
| 8 pm | 6:30 am |
| 10 pm | 8:30 am |
IST to PST during daylight saving
Between the dates listed above, the difference is 12 hours 30 minutes instead of 13 hours 30 minutes.
| IST | PST/PDT |
|---|---|
| 12 am | 11:30 amprevious day |
| 3 am | 2:30 pmprevious day |
| 6 am | 5:30 pmprevious day |
| 8 am | 7:30 pmprevious day |
| 9 am | 8:30 pmprevious day |
| 10 am | 9:30 pmprevious day |
| 11 am | 10:30 pmprevious day |
| 12 pm | 11:30 pmprevious day |
| 1 pm | 12:30 am |
| 2 pm | 1:30 am |
| 3 pm | 2:30 am |
| 4 pm | 3:30 am |
| 5 pm | 4:30 am |
| 6 pm | 5:30 am |
| 8 pm | 7:30 am |
| 10 pm | 9:30 am |
Frequently asked questions
What is the time difference between IST and PST?
PST is 13 hours 30 minutes behind IST on standard time. During daylight saving the gap changes to 12 hours 30 minutes. That comes from the UTC offsets: IST is UTC+5:30 and PST is UTC−8. For example, 9 am IST = 7:30 pm PST the previous day, and in summer 9 am IST = 8:30 pm PST the previous day.
Is PST ahead of or behind IST?
PST is 13 hours 30 minutes behind IST, so when it is noon in IST it is 10:30 pm in PST the previous day. Ahead means the clock there already shows a later time; a call at 5 pm IST lands at 3:30 am PST.
Does IST or PST observe daylight saving time in 2026?
IST keeps UTC+5:30 all year. PST switches to PDT (UTC−7) on March 8 and back on November 1. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between IST and PST?
Office hours (9 am to 5 pm) do not overlap at all with a 13 hours 30 minutes difference. The least painful options are early morning in PST or early evening in IST; for example 8 am IST = 6:30 pm PST the previous day and 6 pm IST = 4:30 am PST. Rotate the inconvenient slot between the two sides for recurring calls.
Which cities use IST and PST?
IST (India Standard Time) is used in Mumbai, Delhi, Bengaluru, Kolkata. PST (Pacific Standard Time) is used in Los Angeles, San Francisco, Seattle, Vancouver. Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.