Quick Reference: PST is 13 hours 30 minutes behind IST (PDT during daylight saving). India does not observe daylight saving time. Common IST to PST Conversions: 00:00 IST = 10:30 PST (prev day) | 06:00 IST = 16:30 PST (prev day) | 09:00 IST = 19:30 PST (prev day) | 12:00 IST = 22:30 PST (prev day) | 15:00 IST = 01:30 PST | 18:00 IST = 04:30 PST Related conversions: PST to IST , UTC to PST , EST to PST , CST to PST , GMT to PST , JST to PST Quick Time Zone Conversions Complete Timezone Conversion Tables Need the Full Toolkit? These free tools are one click away on our home page Live World Clock See the current time in 200+ cities at a glance Meeting Planner Compare multiple cities side-by-side for the perfect meeting time All 58 Converters Every popular timezone pair - EST, PST, GMT, IST, JST and more Complete IST → PST Conversion Table All 24 hours · Both DST seasons · Best meeting windows marked ★ What is the time difference between IST and PST? PST is 13 hours 30 minutes behind IST. During March to November, when PST switches to PDT, the difference becomes 12 hours 30 minutes behind. 9:00 AM IST = 7:30 PM (previous day) PST. 12:00 PM IST = 10:30 PM (previous day) PST. 5:00 PM IST = 3:30 AM PST. What is the best time to call from Mumbai to Los Angeles? There is no 9-to-5 business hours overlap between IST and PST. The typical compromise is early morning IST: 8:00 AM IST (6:30 PM (previous day) PST), or late evening IST: 6:00 PM IST (4:30 AM PST). One side will be outside normal hours, so teams usually rotate who takes the off-hours call. IST to PST Conversion - Frequently Asked Questions What is the time difference between IST and PST? IST is 13.5 hours ahead of PST (winter), 12.5 hours ahead of PDT (summer). 00:00 IST = 10:30 PST (previous day) 09:00 IST = 19:30 PST (previous day) 19:30 IST = 06:00 PST (same day) 23:00 IST = 09:30 PST (same day) How do I convert IST to PST? To convert IST to PST: Winter (PST): Subtract 13.5 hours from IST Summer (PDT): Subtract 12.5 hours from IST Quick examples: 09:00 IST = 19:30 PST (previous day) 19:30 IST = 06:00 PST (same day) What is the best time for meetings between IST and PST zones? Optimal: 19:30-23:30 IST = 06:00-10:00 PST (or 07:00-11:00 PDT) Why this works: India: Evening hours (7:30-11:30 PM) US Pacific: Early morning business hours Popular: 20:30 IST = 07:00 PST for tech teams Does India observe Daylight Saving Time? No, India does not observe DST. IST stays at UTC+5:30 year-round. US Pacific does observe DST: PST (Winter): UTC-8 (Nov-Mar) PDT (Summer): UTC-7 (Mar-Nov) Time difference: 13.5 hrs (PST) or 12.5 hrs (PDT) What cities are in the IST timezone? Major IST cities (UTC+5:30): Mumbai - 20.7M (Financial capital) Delhi - 32.9M (National capital) Bangalore - 12.3M (Tech hub)

Hyderabad - 10M (IT services) Chennai - 10.9M (Industrial) Pune - 6.6M (Education) What cities are in the PST timezone? Major PST/PDT cities (UTC-8/-7): Los Angeles - 3.9M (Entertainment) San Francisco - 815K (Tech hub) San Diego - 1.4M (Biotech) Seattle - 749K (Amazon, Microsoft) Portland - 653K (Manufacturing) Las Vegas - 656K (Entertainment) How do I schedule calls between India and US West Coast? Best practices: Use 19:30-23:30 IST (06:00-10:00 PST/PDT) Specify both local times in invites Account for DST transitions (Mar/Nov) Avoid India calls after 23:30 IST Popular: 20:30 IST = 07:00 PST (daily standups) Need more help? Check our complete FAQ section. All Time Zone Abbreviations & Offsets (2025 Edition) PST/PDT: Pacific Standard/Daylight Time (UTC-8/-7) MST/MDT: Mountain Standard/Daylight Time (UTC-7/-6) CST/CDT: Central Standard/Daylight Time (UTC-6/-5) EST/EDT: Eastern Standard/Daylight Time (UTC-5/-4) AST/ADT: Atlantic Standard/Daylight Time (UTC-4/-3) BRT: Bras?lia Time (UTC-3) ART: Argentina Time (UTC-3) Europe & Africa GMT/BST: Greenwich Mean Time/British Summer Time (UTC+0/+1) CET/CEST: Central European Time/Summer Time (UTC+1/+2) EET/EEST: Eastern European Time/Summer Time (UTC+2/+3) MSK: Moscow Time (UTC+3) WAT: West Africa Time (UTC+1) CAT: Central Africa Time (UTC+2) EAT: East Africa Time (UTC+3) IST: India Standard Time (UTC+5:30) CST: China Standard Time (UTC+8) JST: Japan Standard Time (UTC+9) KST: Korea Standard Time (UTC+9) AEST/AEDT: Australian Eastern Standard/Daylight Time (UTC+10/+11) NZST/NZDT: New Zealand Standard/Daylight Time (UTC+12/+13) HST: Hawaii Standard Time (UTC-10) Popular Cities in These Timezones IST Timezone Cities: Mumbai, Delhi, Bangalore, Kolkata PST Timezone Cities: Los Angeles, San Francisco, Seattle, Portland Related Reading IST to PST is one of the toughest India-US time zone pairs. See our full guide: Best Time to Call India from the US — including the Los Angeles window and common scheduling traps.