PDT to EEST Converter
Convert time between Pacific Daylight Time (PDT) and Eastern European Summer Time (EEST)
Pacific Daylight Time (PDT)
Eastern European Summer Time (EEST)
Time Difference
Eastern European Summer Time (EEST) is 0 hours ahead of Pacific Daylight Time (PDT)
Select Date
Select Time
Quick Reference
| PDT | 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 PDT to EEST Time Conversion
Converting time between Pacific Daylight Time (PDT) and Eastern European Summer Time (EEST) is essential for transatlantic business coordination during the Eastern European summer season. PDT is UTC-7 (used March to November during daylight saving time), while EEST is UTC+3 (used late March to late October). EEST is 10 hours ahead of PDT during the overlapping period when both time zones are active.
This conversion is crucial for international businesses, startups coordinating between Silicon Valley and Eastern European operations, tech companies with distributed teams, and personal communication with family and friends across the Atlantic and beyond. Our converter automatically handles the seasonal transitions and accounts for the different transition dates between North America and Eastern Europe.
Common Use Cases for PDT to EEST Conversion
Business & Work
- Scheduling meetings between Silicon Valley and Eastern European offices during summer
- Coordinating international business operations across time zones
- Planning conference calls between US West Coast and Eastern Europe during Eastern European summer
- Managing distributed development and support teams during summer months
Personal & Travel
- Planning travel from Pacific region to Eastern Europe
- Coordinating with family and friends across the Atlantic and beyond
- Scheduling international virtual events and webinars during summer
- Attending Eastern European conferences and online courses during summer season
Time Zone Information
Pacific Daylight Time (PDT)
- UTC Offset: UTC-7 (UTC-8 during PST)
- 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 European Summer Time (EEST)
- UTC Offset: UTC+3 (UTC+2 during EET)
- IANA Timezone: Europe/Athens
- Daylight Saving: Last Sunday in March to Last Sunday in October
- Major Cities: Athens, Sofia, Bucharest, Kiev, Helsinki, Istanbul, Moscow
- Coverage: Eastern Europe, Turkey, and parts of Western Asia
Quick Reference: PDT to EEST
Remember: EEST is 10 hours ahead of PDT during the overlapping period (late March to late October). After late October, use PDT to EET conversion (9 hours) instead.
Frequently Asked Questions
What is the time difference between PDT and EEST?
PDT (Pacific Daylight Time) is UTC-7 and EEST (Eastern European Summer Time) is UTC+3, making EEST 10 hours ahead of PDT. This is the time difference during Eastern European summer (late March to late October) and US daylight saving time (March to November). During the brief overlapping period, the difference is consistently 10 hours.
When do PDT and EEST transition to other time zones?
PDT (Pacific Daylight Time) is active from the second Sunday in March to the first Sunday in November. Outside these dates, PST (Pacific Standard Time at UTC-8) is observed. EEST (Eastern European Summer Time) is active from the last Sunday in March to the last Sunday in October. Outside these dates, EET (Eastern European Time at UTC+2) is observed. This creates a 10-hour difference during the overlapping months.
Which regions use PDT and EEST?
PDT is used in the Pacific Time Zone, covering the US West Coast including California, Washington, Oregon, and parts of Nevada and Idaho. EEST is used in Eastern Europe during summer, including countries like Bulgaria, Romania, Greece, Turkey, Finland, Ukraine, and Russia (Western parts). PDT represents the US West Coast during daylight saving time, while EEST represents Eastern Europe during their summer period.
Why is PDT to EEST conversion important?
This conversion is essential for international business coordination between the US West Coast and Eastern Europe during the summer months. Major tech companies with offices in both Silicon Valley and Eastern European cities, multinational corporations, remote teams, and international trade all require accurate PDT to EEST conversion during the Eastern European summer season. It's critical for transatlantic business operations.
How do I calculate PDT to EEST conversion manually?
Add 10 hours to PDT time to get EEST time. Example: 2:00 PM PDT + 10 hours = 12:00 AM EEST (next day). Another example: 8:00 AM PDT + 10 hours = 6:00 PM EEST (same day). This 10-hour difference remains consistent during the overlapping period when both PDT and EEST are active.
What are the major cities in PDT and EEST zones?
PDT covers major West Coast US cities including Los Angeles, San Francisco, Seattle, San Diego, Portland, and Sacramento. EEST covers major Eastern European cities including Athens, Sofia, Bucharest, Kiev, Helsinki, Istanbul, and Moscow. These cities represent major economic and cultural centers bridging North America and Eastern Europe.
Pro Tips
- • Remember that EEST is always 10 hours ahead of PDT during the overlapping period when both are in effect (March to late October).
- • The best meeting times for US-Eastern Europe calls during European summer are early morning on the West Coast (5-7 AM PDT) and late afternoon/evening in Eastern Europe (3-5 PM EEST).
- • Use calendar apps that automatically handle time zone conversions to avoid confusion, as Europe and North America transition to daylight saving at different times.
- • EEST typically starts and ends on different dates than PDT, creating brief periods where the time difference is not 10 hours. Check transition dates carefully.
- • When scheduling important transatlantic meetings during summer, confirm the current time difference as Eastern European summer time ends earlier than US daylight saving time.
- • Most international business hubs have automated systems for handling PDT-EEST conversions, but understanding the 10-hour difference helps avoid scheduling errors!
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