Convert India Standard Time to Pacific Daylight Time (IST to PDT)

Understanding IST and PDT 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 Daylight Time (PDT)

Pacific Daylight Time operates at UTC-7, covering undefined. Key cities include Los Angeles, San Francisco, Seattle, Portland. The 12.5-hour backward offset from IST means that when professionals in Mumbai start their workday at 9:00 AM, it is already 8:30 PM in Los Angeles.

IST is also commonly referred to as India time, Indian time, Mumbai time, Delhi time. PDT is also known as Pacific Time, Pacific Daylight, 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 PDT.

Complete IST to PDT Conversion Table

The table below shows every two-hour increment converted from India Standard Time to Pacific Daylight Time. Business hours (9 AM – 5 PM) are highlighted for easy scheduling reference.

Times shown in 12-hour and 24-hour format. Last updated 2026-03-09.

Scheduling Between IST and PDT

International conference calls between Mumbai, Delhi, Bangalore and Los Angeles, San Francisco, Seattle, Portland work best when scheduled during the overlap of both regions' business hours. Rotating meeting times monthly ensures fairness across time zones.

The large 12.5-hour gap between IST and PDT 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

Booking hotels and transportation in Los Angeles? Double-check whether listed check-in times are in PDT (local) or your departure time zone. A common mistake is arriving 12.5 hours early or late due to unconverted times.

Medical experts recommend allowing approximately one day of adjustment per hour of time difference. For the 12.5-hour shift between IST and PDT, plan for roughly one week of gradual adjustment for optimal performance.

Daylight Saving Time Considerations

When daylight saving time is in effect, the abbreviation changes (e.g., EST becomes EDT, CET becomes CEST). Our converter handles this automatically, but being aware of which version is active helps avoid confusion.

For the IST to PDT conversion specifically: IST (UTC+5.5) does not observe DST, while PDT (UTC-7) does observe DST. This means the offset between them changes by one hour seasonally — the usual 12.5-hour gap becomes 11.5 or 13.5 hours during DST transitions.

Related Time Zone Conversions

References & Resources

• TimeAndDate.com — World Time Zones
• NIST — Official US Time Standard
• IANA Time Zone Database
• Wikipedia — Time Zone Abbreviations
• WorldTimeServer — Current Times Worldwide
• NPL India — Indian Standard Time

Frequently Asked Questions