ISTtoPSTIndia Standard Time to Pacific Standard Time
IST
India Standard Time (GMT+5:30)PST
Pacific Standard Time (PDT)Feasible Shoulder Hours Window
Recommended calling window between IST and PST
There are no overlapping 9-to-5 working hours between IST and PST. The optimal compromise window falls during morning/evening shoulder periods (7:00 AM – 9:00 PM) when participants in both locations are awake.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between IST and PST.
| IST Time (India Standard Time) | PST Time (Pacific Standard Time) | Status & Recommendation |
|---|---|---|
| 00:00AM | 11:00AM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 12:00PM-1 day | ⚪ Outside Work Hours |
| 02:00AM | 13:00PM-1 day | ⚪ Outside Work Hours |
| 03:00AM | 14:00PM-1 day | ⚪ Outside Work Hours |
| 04:00AM | 15:00PM-1 day | ⚪ Outside Work Hours |
| 05:00AM | 16:00PM-1 day | ⚪ Outside Work Hours |
| 06:00AM | 17:00PM-1 day | ⚪ Outside Work Hours |
| 07:00AM | 18:00PM-1 day | ⚪ Outside Work Hours |
| 08:00AM | 19:00PM-1 day | ⚪ Outside Work Hours |
| 09:00AM | 20:00PM-1 day | 🟡 Feasible (Shoulder Hour) |
| 10:00AM | 21:00PM-1 day | ⚪ Outside Work Hours |
| 11:00AM | 22:00PM-1 day | ⚪ Outside Work Hours |
| 12:00PM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 13:00PM | 00:00AM | ⚪ Outside Work Hours |
| 14:00PM | 01:00AM | ⚪ Outside Work Hours |
| 15:00PM | 02:00AM | ⚪ Outside Work Hours |
| 16:00PM | 03:00AM | ⚪ Outside Work Hours |
| 17:00PM | 04:00AM | ⚪ Outside Work Hours |
| 18:00PM | 05:00AM | ⚪ Outside Work Hours |
| 19:00PM | 06:00AM | ⚪ Outside Work Hours |
| 20:00PM | 07:00AM | ⚪ Outside Work Hours |
| 21:00PM | 08:00AM | ⚪ Outside Work Hours |
| 22:00PM | 09:00AM | ⚪ Outside Work Hours |
| 23:00PM | 10:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between IST and PST?
PST is 12 hours 30 minutes behind IST. When it is 12:00 PM (noon) in IST, the current synchronized time in PST is 11:30 PM.
What are the overlapping working hours between IST and PST?
Due to the timezone separation, standard 9-to-5 working shifts do not overlap. The recommended compromise window falls during morning/evening shoulder periods (7:00 AM – 9:00 PM in IST = 6:00 PM – 8:00 AM in PST).
Does daylight saving time affect the conversion between IST and PST?
Yes. PST observes daylight saving shifts (PDT), shifting the offset difference by 1 hour between summer and winter while IST stays on fixed standard time year-round.
What regions and major cities observe IST and PST?
IST (India Standard Time) is primarily observed across South Asia (Republic of India & Sri Lanka) (key hubs include New Delhi, Mumbai, Bengaluru, Hyderabad). PST (Pacific Standard Time) is observed across Western North America (US West Coast & British Columbia) (key hubs include Los Angeles, San Francisco, Seattle, Vancouver).
What is 9:00 AM IST in PST?
9:00 AM in IST corresponds to 8:30 PM in PST. You can cross-reference every hour of the day in the 24-hour visual schedule table above.
Which time zone is ahead, IST or PST?
IST is ahead by 12 hours and 30 minutes.