PST to EEST Converter
Convert time between Pacific Standard Time (PST) and Eastern European Summer Time (EEST)
Pacific Standard Time (PST)
Eastern European Summer Time (EEST)
Time Difference
Eastern European Summer Time (EEST) is 0 hours ahead of Pacific Standard Time (PST)
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Select Time
Quick Reference
| PST | EEST |
|---|---|
| 18:00 | 04:00 |
| 20:00 | 06:00 |
| 22:00 | 08:00 |
| 00:00 | 10:00 |
| 02:00 | 12:00 |
| 04:00 | 14:00 |
| 06:00 | 16:00 |
| 08:00 | 18:00 |
| 10:00 | 20:00 |
| 12:00 | 22:00 |
| 14:00 | 00:00 |
| 16:00 | 02:00 |
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 EEST Time Conversion
Converting time between Pacific Standard Time (PST) and Eastern European Summer Time (EEST) is essential for coordinating between the Pacific Coast and Eastern Europe during summer months. PST is UTC-8 (observed during winter, November to March), while EEST is UTC+3 (observed during summer, late March to late October). EEST is 11 hours ahead of PST.
This conversion is important for international businesses coordinating between Pacific region cities (Los Angeles, San Francisco, Seattle) and Eastern European cities (Athens, Cairo, Helsinki) during the summer season. The 11-hour offset during EEST summer is one of the largest for Pacific-Eastern Europe coordination. Summer is often peak season for tourism, hospitality, and project-based work, making coordination both critical and challenging. Different transition dates between PST/PDT and EEST/EET create temporary 10-hour windows. Both regions observe daylight saving time but on different dates, requiring careful tracking of seasonal transitions.
Common Use Cases for PST to EEST Conversion
Business & Work
- Scheduling summer coordination between Pacific Coast offices and Eastern European headquarters
- Managing peak season tourism and hospitality operations across regions
- Coordinating international tech development teams during summer months
- Planning summer conferences and meetings with both regions
Personal & Travel
- Coordinating with family and friends in Eastern Europe during summer
- Planning travel between Pacific Coast and Eastern European destinations
- Scheduling virtual meetings with Eastern Europe-based relatives during summer holidays
- Arranging online collaboration during peak vacation seasons
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, Portland, San Diego
- Coverage: Pacific United States and Canada (winter months)
Eastern European Summer Time (EEST)
- UTC Offset: UTC+3
- IANA Timezone: Europe/Athens
- Daylight Saving: Summer time (last Sunday in March to last Sunday in October)
- Major Cities: Athens, Cairo, Helsinki, Kiev, Bucharest, Sofia
- Coverage: Eastern Europe, Egypt, and Eastern Mediterranean region (summer months)
Quick Reference: PST to EEST
Remember: EEST is 11 hours ahead of PST (March-October). When PDT is active (summer), the difference reduces to 10 hours. Different transition dates for PST and EEST create temporary mismatches.
Frequently Asked Questions
What is the time difference between PST and EEST?
Pacific Standard Time (PST) is UTC-8, while Eastern European Summer Time (EEST) is UTC+3. This means EEST is 11 hours ahead of PST. When you have 12:00 PM in Los Angeles (PST), it's 11:00 PM the same day in Athens (EEST).
How does EEST differ from EET, and when do the transitions occur?
EEST (Eastern European Summer Time, UTC+3) is observed from the last Sunday of March to the last Sunday of October. EET (Eastern European Time, UTC+2) is the winter time observed from October to March. This means the time difference with PST varies: 11 hours during EEST summer and 10 hours during EET winter.
Does PST transition differently than EEST?
Yes, PST transitions to PDT (Pacific Daylight Time, UTC-7) on the second Sunday in March, while EEST transitions to EET on the last Sunday of October. This means the time difference decreases to 10 hours during summer when PDT is active and EEST is still in effect. The different transition dates create temporary mismatches.
What are the best times to schedule calls between Pacific Coast and Eastern Europe during summer?
The 11-hour difference during EEST limits overlap. Late evening in Pacific (8-10 PM PST) corresponds to morning next day in Eastern Europe (7-9 AM EEST). Early morning in Pacific (6-8 AM PST) corresponds to evening in Eastern Europe (5-7 PM EEST). Evening EEST time is generally better for real-time business discussion.
How does the summer EEST period affect international business coordination?
During EEST (March-October), the 11-hour offset becomes one of the largest for Pacific-Eastern Europe coordination. Summer is often peak vacation season in both regions, potentially limiting availability. Companies must plan meetings carefully during this period, often relying more on asynchronous communication.
Which sectors actively coordinate across PST and EEST timezones?
Tech companies, international finance firms, research institutions, tourism operators, and multinational enterprises coordinate across these regions. Summer EEST coordination is especially important for tourism, hospitality, and seasonal industries. These organizations manage the 11-hour gap through strategic scheduling and rotating team availability.
Pro Tips
- • EEST (Eastern European Summer Time) runs from late March to late October. During this period, the time difference is 11 hours - one of the largest for Pacific-Eastern Europe coordination.
- • Late evening Pacific time (8-10 PM PST) is the best window for real-time coordination with EEST regions - it corresponds to morning next day (7-9 AM EEST), when both parties are relatively alert.
- • Early morning Pacific time (6-8 AM PST) aligns with evening Eastern Europe (5-7 PM EEST). This window works for time-sensitive matters but may be challenging for Pacific team members.
- • The transition dates differ: PST changes on second Sunday in March/first Sunday in November, while EEST changes on last Sunday in March/October. Track both calendars to manage the 11-hour offset.
- • Summer vacation season coincides with EEST (March-October). Plan projects and meetings with awareness that key team members may be on holiday, reducing real-time availability.
- • Asynchronous communication is essential during EEST period. Use video messages, detailed documentation, and shared project management tools to maintain productivity across the 11-hour gap.
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