PST to EST Converter
Convert time between Pacific Standard Time (PST) and Eastern Standard Time (EST)
Pacific Standard Time (PST)
Eastern Standard Time (EST)
Time Difference
Eastern Standard Time (EST) is 0 hours ahead of Pacific Standard Time (PST)
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Select Time
Quick Reference
| PST | EST |
|---|---|
| 18:00 | 21:00 |
| 20:00 | 23:00 |
| 22:00 | 01:00 |
| 00:00 | 03:00 |
| 02:00 | 05:00 |
| 04:00 | 07:00 |
| 06:00 | 09:00 |
| 08:00 | 11:00 |
| 10:00 | 13:00 |
| 12:00 | 15:00 |
| 14:00 | 17:00 |
| 16:00 | 19:00 |
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 EST Time Conversion
Converting time from Pacific Standard Time (PST) to Eastern Standard Time (EST) is crucial for West Coast to East Coast coordination. PST is UTC-8, while EST is UTC-5, making EST 3 hours ahead of PST.
This conversion is vital for business operations, media coordination, financial markets, and personal communications spanning the Pacific and Eastern time zones.
Common Use Cases for PST to EST Conversion
Business & Work
- Coordinating with East Coast business partners
- Scheduling earnings calls and financial announcements
- Planning media releases and press conferences
Personal & Travel
- Arranging travel from West to East Coast
- Coordinating with Eastern time zone family
- Planning virtual events for national audiences
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
- Coverage: Pacific United States and Canada
Eastern Standard Time (EST)
- UTC Offset: UTC-5 (UTC-4 during EDT)
- IANA Timezone: America/New_York
- Daylight Saving: Second Sunday in March to First Sunday in November
- Major Cities: New York, Philadelphia, Atlanta, Miami, Boston
- Coverage: Eastern United States and Canada
Quick Reference: PST to EST
Remember: EST is always 3 hours ahead of PST
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