PST to IST Converter
Convert time between Pacific Standard Time (PST) and India Standard Time (IST)
Pacific Standard Time (PST)
India Standard Time (IST)
Time Difference
India Standard Time (IST) is 0 hours ahead of Pacific Standard Time (PST)
Select Date
Select Time
Quick Reference
| PST | IST |
|---|---|
| 18:00 | 07:30 |
| 20:00 | 09:30 |
| 22:00 | 11:30 |
| 00:00 | 13:30 |
| 02:00 | 15:30 |
| 04:00 | 17:30 |
| 06:00 | 19:30 |
| 08:00 | 21:30 |
| 10:00 | 23:30 |
| 12:00 | 01:30 |
| 14:00 | 03:30 |
| 16:00 | 05:30 |
Top 10 Most Common Time Zones
| Abbreviation | Full Name | UTC Offset | Typical Use |
|---|---|---|---|
| UTC | Coordinated Universal Time | UTC ±0 | Global reference standard (servers, logs, APIs) |
| EST / EDT | Eastern (US) Time | UTC −5 / −4 | New York, Toronto — North American business hub |
| CST / CDT | Central (US) Time | UTC −6 / −5 | Chicago, Dallas — US central business region |
| PST / PDT | Pacific (US) Time | UTC −8 / −7 | San Francisco, Los Angeles — tech industry standard |
| GMT / BST | Greenwich Mean / British Summer Time | UTC 0 / +1 | UK, used globally as a reference with UTC |
| CET / CEST | Central European (Summer) Time | UTC +1 / +2 | Paris, Berlin, Amsterdam — EU business core |
| IST | India Standard Time | UTC +5:30 | India — major IT & outsourcing region |
| CST | China Standard Time | UTC +8 | Beijing, Shanghai — East Asia business hub |
| JST | Japan Standard Time | UTC +9 | Tokyo — finance & tech hub |
| AEST / AEDT | Australian Eastern (Daylight) Time | UTC +10 / +11 | Sydney, Melbourne — APAC regional business |
Why Time Zone Abbreviations Are Ambiguous
Unlike standardized identifiers (like America/New_York or Europe/London from the IANA tz database), abbreviations such as "CST" or "IST" are not globally unique. They can refer to different time zones depending on context — country, region, or even time of year (due to daylight saving time).
Common Ambiguous Time Zone Abbreviations
| Abbrev. | Common Meaning(s) | UTC Offset | Region(s) |
|---|---|---|---|
| CST | Central Standard Time / China Standard Time / Cuba Standard Time | UTC−6 / UTC+8 / UTC−5 | North America, China, Cuba |
| IST | Indian Standard Time / Irish Standard Time / Israel Standard Time | UTC+5:30 / UTC+1 / UTC+2 | India, Ireland, Israel |
| AST | Atlantic Standard Time / Arabia Standard Time | UTC−4 / UTC+3 | Caribbean, Canada, Middle East |
| PST | Pacific Standard Time / Philippine Standard Time | UTC−8 / UTC+8 | North America, Philippines |
| EST | Eastern Standard Time (North America / Australia) | UTC−5 / UTC+10 | North America, Australia |
✅ Best Practice
To avoid ambiguity, always:
- Use IANA tz identifiers — e.g.,
America/New_Yorkinstead of "EST" - Specify UTC offset explicitly — e.g.,
UTC−5when abbreviations must be used - Include the full timezone name — e.g., "Eastern Standard Time (EST)" with UTC offset
Related Time Zone Conversions
About PST to IST Time Conversion
Converting time between Pacific Standard Time (PST) and India Standard Time (IST) is essential for coordinating between the US West Coast and India. PST is UTC-8 (observed November to March), while IST is UTC+5:30 (consistent year-round, no daylight saving time). IST is 13.5 hours ahead of PST during standard time, and 12.5 hours ahead during Pacific Daylight Time (PDT).
This conversion is crucial for Indian tech companies coordinating with Silicon Valley offices, software development teams, startups, outsourcing firms, and businesses bridging US West Coast and India operations. India Standard Time is unique with its 30-minute offset and does not observe daylight saving time, making it consistently ahead year-round. The US West Coast observes daylight saving time, so the time difference varies between 12.5 and 13.5 hours depending on the season.
Common Use Cases for PST to IST Conversion
Business & Work
- Scheduling meetings between Silicon Valley and Indian offices
- Coordinating tech team standups across US-India timezones
- Managing software development projects with distributed teams
- Planning conference calls and webinars for both regions
- Coordinating with Indian outsourcing and BPO partners
Personal & Travel
- Staying in touch with family and friends in India
- Scheduling virtual events for participants in both countries
- Planning international travel between US and India
- Coordinating with Indian business partners and consultants
- Managing online education and tutoring sessions
Time Zone Information
Pacific Standard Time (PST)
- UTC Offset: UTC-8 (UTC-7 during PDT)
- IANA Timezone: America/Los_Angeles
- Daylight Saving: Second Sunday in March to First Sunday in November
- Major Cities: Los Angeles, San Francisco, Seattle, San Diego, Portland, Silicon Valley
- Coverage: Pacific United States and Canada
India Standard Time (IST)
- UTC Offset: UTC+5:30 (No daylight saving time)
- IANA Timezone: Asia/Kolkata
- Daylight Saving: None - IST is consistent year-round
- Major Cities: New Delhi, Mumbai, Bangalore, Hyderabad, Chennai, Pune
- Coverage: All of India
Quick Reference: PST to IST
Remember: IST is 13.5 hours ahead of PST (12.5 hours during PDT). IST does not observe daylight saving time.