EDT to PDT Converter
Convert time between Eastern Daylight Time (EDT) and Pacific Daylight Time (PDT)
Eastern Daylight Time (EDT)
Pacific Daylight Time (PDT)
Time Difference
Pacific Daylight Time (PDT) is 0 hours ahead of Eastern Daylight Time (EDT)
Select Date
Select Time
Quick Reference
| EDT | PDT |
|---|---|
| 21:00 | 18:00 |
| 23:00 | 20:00 |
| 01:00 | 22:00 |
| 03:00 | 00:00 |
| 05:00 | 02:00 |
| 07:00 | 04:00 |
| 09:00 | 06:00 |
| 11:00 | 08:00 |
| 13:00 | 10:00 |
| 15:00 | 12:00 |
| 17:00 | 14:00 |
| 19:00 | 16:00 |
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 EDT to PDT Time Conversion
Converting time between Eastern Daylight Time (EDT) and Pacific Daylight Time (PDT) is essential for coordinating between the US East Coast and West Coast during daylight saving time. EDT is UTC-4 (used March to November), while PDT is UTC-7 (also used March to November). PDT is exactly 3 hours behind EDT, making it one of the most common cross-country conversions for US business and personal coordination.
This converter is perfect for scheduling meetings, conference calls, and coordinating business operations between New York, Boston, Philadelphia, and other East Coast cities with Los Angeles, San Francisco, Seattle, and Pacific Coast cities. During standard time (November to March), the conversion would be EST to PST, which has a 3-hour difference. This makes coast-to-coast coordination consistent year-round.
Common Use Cases for EDT to PDT Conversion
Business & Work
- Scheduling meetings between East Coast offices and West Coast tech companies
- Coordinating between New York financial centers and Silicon Valley
- Planning conference calls and webinars across coasts
- Managing distributed teams across the United States
- Coordinating product launches and business announcements
Personal & Travel
- Planning travel between Eastern and Pacific time zones
- Coordinating with family and friends across the country
- Scheduling virtual events for coast-to-coast participation
- Understanding broadcast times for national TV shows
- Managing time-sensitive appointments across regions
Time Zone Information
Eastern Daylight Time (EDT)
- UTC Offset: UTC-4 (UTC-5 during EST)
- IANA Timezone: America/New_York
- Daylight Saving: Second Sunday in March to First Sunday in November
- Major Cities: New York, Boston, Philadelphia, Atlanta, Miami, Washington DC
- Coverage: Eastern United States and Canada
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, Silicon Valley
- Coverage: Pacific United States and Canada
Quick Reference: EDT to PDT
Remember: PDT is always 3 hours behind EDT during daylight saving time
Frequently Asked Questions
What is the time difference between EDT and PDT?
Eastern Daylight Time (EDT) is UTC-4, while Pacific Daylight Time (PDT) is UTC-7. This means PDT is 3 hours behind EDT. When it's 1:00 PM in New York (EDT), it's 10:00 AM in Los Angeles (PDT).
How does the EDT to PDT offset differ from other US timezones?
EDT is 1 hour ahead of CDT (Central) and 2 hours ahead of MDT (Mountain). The 3-hour difference between EDT and PDT makes it the largest offset between any two mainland US timezone pairs during daylight saving time. This makes coast-to-coast coordination more challenging but consistent.
When do EDT and PDT transitions occur?
Both EDT and PDT follow the same daylight saving time schedule: they start on the second Sunday in March and end on the first Sunday in November. They transition on the exact same dates, so the 3-hour difference remains constant throughout their active periods.
What are the best times to schedule calls between EDT and PDT zones?
Business hour overlap is limited due to the 3-hour difference. Early morning in the East (7-9 AM EDT) overlaps with early morning on the West Coast (4-6 AM PDT). Late afternoon on the East (3-5 PM EDT) overlaps with mid-morning on the West Coast (12-2 PM PDT). These windows offer the best meeting times for both regions.
Why is coast-to-coast coordination important for US businesses?
The 3-hour EDT-PDT difference makes coast-to-coast operations critical for many US companies. Tech companies with offices in Silicon Valley and New York, financial firms, media companies, and national retailers all rely on accurate timezone conversions to coordinate operations across the continent efficiently.
What happens when daylight saving time transitions occur?
EDT and PDT transition on the same dates (second Sunday in March and first Sunday in November), so the 3-hour difference remains consistent. However, you must adjust meeting schedules on these dates. During the brief periods when one region is in daylight time and the other isn't (only during very short transition windows), differences may be 2 or 4 hours.
Pro Tips
- • Use "9 AM PT / 12 PM ET" format when scheduling calls - this double notation prevents timezone confusion and helps both coasts understand the exact time.
- • The 3-hour difference is significant - a 5 PM EDT meeting is 2 PM PDT. Consider rotating meeting times to share the inconvenience of early/late calls.
- • Schedule important calls between 8-10 AM PDT (11 AM-1 PM EDT) when both coasts are in mid-morning mode with good energy and focus.
- • Tech companies often have staggered start times: West Coast 7-8 AM PDT (10-11 AM EDT) gives 1-2 hours of overlap with standard East Coast hours.
- • Document critical deadlines in both EDT and PDT to prevent errors. Excel spreadsheet templates with timezone conversion reduce scheduling mistakes.
- • Use calendar tools that display multiple timezones. Google Calendar, Outlook, and Apple Calendar all support multiple timezone display for easier planning.
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