IST to PST Converter
Understanding IST and PST Time Zones
India Standard Time (IST)
India Standard Time is observed in undefined and uses the offset UTC+5.5. Major cities in this time zone include Mumbai, Delhi, Bangalore. This time zone serves a significant global region with important economic and cultural hubs.
Pacific Standard Time (PST)
Pacific Standard Time operates at UTC-8, covering undefined. Key cities include Los Angeles, San Francisco, Seattle, Portland. The 13.5-hour backward offset from IST means that when professionals in Mumbai start their workday at 9:00 AM, it is already 7:30 PM in Los Angeles.
IST is also commonly referred to as India time, Indian time, Mumbai time, Delhi time. PST is also known as Pacific Time, PT, West Coast time, LA time, California time. So if you are searching for India time to Pacific Time, this is the same conversion as IST to PST.
Complete IST to PST Conversion Table
The table below shows every two-hour increment converted from India Standard Time to Pacific Standard Time. Business hours (9 AM – 5 PM) are highlighted for easy scheduling reference.
| IST (India Standard Time) | PST (Pacific Standard Time) |
|---|---|
| 12:00 AM (00:00) | 10:30 AM (10:30) (previous day) |
| 2:00 AM (02:00) | 12:30 PM (12:30) (previous day) |
| 4:00 AM (04:00) | 2:30 PM (14:30) (previous day) |
| 6:00 AM (06:00) | 4:30 PM (16:30) (previous day) |
| 8:00 AM (08:00) | 6:30 PM (18:30) (previous day) |
| 10:00 AM (10:00) | 8:30 PM (20:30) (previous day) |
| 12:00 PM (12:00) | 10:30 PM (22:30) (previous day) |
| 2:00 PM (14:00) | 12:30 AM (00:30) |
| 4:00 PM (16:00) | 2:30 AM (02:30) |
| 6:00 PM (18:00) | 4:30 AM (04:30) |
| 8:00 PM (20:00) | 6:30 AM (06:30) |
| 10:00 PM (22:00) | 8:30 AM (08:30) |
Times shown in 12-hour and 24-hour format. Last updated 2026-03-09.
Scheduling Between IST and PST
When coordinating deliverables across IST and PST, set deadlines in the earlier time zone to avoid end-of-day confusion. A "5 PM deadline" should specify which zone to prevent missed deliveries due to the 13.5-hour offset.
The large 13.5-hour gap between IST and PST means that finding overlapping working hours requires compromise from at least one side. Consider adopting asynchronous workflows — recorded video updates, shared documents, and time-zone-aware project management tools — to supplement the limited real-time overlap.
Travel Between Mumbai and Los Angeles
Flight times between Mumbai and Los Angeles often appear misleading because of the time zone shift. A departure at 10:00 AM IST arriving at 9.5:00 AM PST may look long, but remember to factor in the 13.5-hour offset.
Medical experts recommend allowing approximately one day of adjustment per hour of time difference. For the 13.5-hour shift between IST and PST, plan for roughly one week of gradual adjustment for optimal performance.
Daylight Saving Time Considerations
Countries near the equator — including Singapore, most of Africa, and parts of South America — do not observe DST, making their offsets constant year-round. This simplifies scheduling compared to US or European zones.
For the IST to PST conversion specifically: IST (UTC+5.5) does not observe DST, while PST (UTC-8) does observe DST. This means the offset between them changes by one hour seasonally — the usual 13.5-hour gap becomes 12.5 or 14.5 hours during DST transitions.
Related Time Zone Conversions
References & Resources
Frequently Asked Questions
IST (India Standard Time) is 13.5 hours ahead of PST (Pacific Standard Time). IST is UTC+5.5 and PST is UTC-8.
When it is 12:00 PM (noon) in IST, it is 10:30 PM (previous day) in PST.
The best overlap for business hours is approximately 7:00 PM to 3:00 AM PST, which corresponds to 9:00 AM to 5:00 PM in IST. Given the large gap, consider alternating between early and late meeting times.
Countries near the equator — including Singapore, most of Africa, and parts of South America — do not observe DST, making their offsets constant year-round. This simplifies scheduling compared to US or European zones.