PST to EST Time Converter - Pacific to Eastern Time
Free PST to EST Time Zone Converter - Convert PST to EST Instantly
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Common PST to EST Conversions
= Optimal collaboration times | EST is always 3 hours ahead of PST
24-Hour PST to EST Conversion Reference
| PST | EST | Note |
|---|---|---|
| 00:00 | 03:00 | Midnight West |
| 04:00 | 07:00 | Early morning |
| 06:00 | 09:00 | East work starts |
| 08:00 | 11:00 | Both working |
| 09:00 | 12:00 | Optimal |
| 10:00 | 13:00 | Best time |
| 11:00 | 14:00 | Ideal |
| 12:00 | 15:00 | Good |
| 13:00 | 16:00 | Last slot |
| 14:00 | 17:00 | East work ends |
| 16:00 | 19:00 | West work ends |
| 18:00 | 21:00 | Evening West |
| 20:00 | 23:00 | Late evening |
| 01:00 | 04:00 | Late night |
| 03:00 | 06:00 | Very early |
| 07:00 | 10:00 | Morning hours |
| 15:00 | 18:00 | Afternoon |
| 21:00 | 00:00 | Midnight East |
= Optimal meeting times (09:00-13:00 PST) | Green = Best US business hours overlap
Related: EST to PST | PST to CST | CST to EST
Common Questions About PST to EST Conversion
What is the time difference between PST and EST?
EST is always 3 hours ahead of PST, year-round.
12:00 PST = 15:00 EST. Both time zones change DST on the same dates, maintaining the constant 3-hour difference.
| PST Time | EST Time |
|---|---|
| 00:00 PST (midnight) | 03:00 EST |
| 09:00 PST | 12:00 EST |
| 12:00 PST | 15:00 EST |
| 17:00 PST | 20:00 EST |
Is EST always 3 hours ahead of PST?
Yes! The 3-hour difference is constant because both time zones observe DST on the same schedule.
| Winter (PST/EST): | 3 hours ahead |
| Summer (PDT/EDT): | 3 hours ahead |
| DST Changes: | Same dates (2nd Sun March, 1st Sun Nov) |
Unlike international conversions, PST to EST is always simple - just add 3 hours!
What is the best time for meetings between PST and EST?
The optimal meeting window is 09:00-13:00 PST, which equals 12:00-16:00 EST.
= 13:00 EST
= 15:00 EST
This works perfectly - West Coast morning meets East Coast afternoon, both during standard business hours.
PST to EST Quick Conversion Chart
Quick reference chart for converting Pacific Standard Time to Eastern Standard Time:
= Best meeting time | Simple rule: Add 3 hours to PST = EST
Understanding PST to EST Time Conversion
Major US Pacific Cities (PST/PDT)
Los Angeles (3.9M people, UTC-8 PST / UTC-7 PDT) - Entertainment capital, tech hub
San Francisco (875K people) - Tech headquarters, financial center
Seattle (750K people) - Amazon, Microsoft, Boeing
San Diego (1.4M people) - Biotech, military, tourism
Portland (650K people) - Creative industries, green economy
Las Vegas (650K people) - Entertainment, conventions
Major US Eastern Cities (EST/EDT)
New York (8.3M people, UTC-5 EST / UTC-4 EDT) - Financial capital, media hub
Miami (450K people, 6.1M metro) - Latin American trade, tourism
Boston (675K people) - Education, biotech, finance
Philadelphia (1.6M people) - Healthcare, education
Atlanta (500K people) - Transportation hub, business center
Washington DC (700K people) - Government, policy
Best Times for PST to EST Meetings
Optimal Window: 09:00-13:00 PST = 12:00-16:00 EST
Why this works: West Coast morning meets East Coast afternoon - perfect overlap for both US time zones
Best single time: 11:00 PST (14:00 EST) - Mid-morning Pacific, mid-afternoon Eastern
Alternative: 10:00-12:00 PST for 2-hour window during core business hours
Avoid: Before 09:00 PST (too early West), after 14:00 PST (too late East)
Technical Time Format Reference
IANA Identifiers: America/Los_Angeles (PST/PDT), America/New_York (EST/EDT)
ISO 8601: 2024-03-15T12:00:00-08:00 (PST) = 2024-03-15T15:00:00-05:00 (EST)
JavaScript: new Date().toLocaleString("en-US", {timeZone: "America/Los_Angeles"})
Python: from zoneinfo import ZoneInfo then datetime.now(ZoneInfo("America/Los_Angeles"))
UTC Offsets: PST = UTC-8, PDT = UTC-7, EST = UTC-5, EDT = UTC-4
What is Pacific Standard Time / Pacific Daylight Time (PST)?
Pacific Standard Time (PST, UTC-8) is used on the US West Coast during winter months from November to mid-March. During Daylight Saving Time (mid-March to November), the region switches to Pacific Daylight Time (PDT, UTC-7), moving clocks forward one hour. This affects major metropolitan areas including Los Angeles, San Francisco, Seattle, and Portland. The time zone serves over 50 million people across California, Washington, Oregon, and Nevada, making it one of the most economically significant time zones in the United States with major tech, entertainment, and aerospace industries.
What is Eastern Standard Time / Eastern Daylight Time (EST)?
Eastern Standard Time (EST, UTC-5) is used on the US East Coast during winter months from November to mid-March. During Daylight Saving Time (mid-March to November), the region switches to Eastern Daylight Time (EDT, UTC-4), moving clocks forward one hour. This affects major cities including New York, Boston, Philadelphia, Miami, Atlanta, and Washington DC. The time zone serves over 150 million people across 17 states and is the most populous US time zone, home to the financial capital (New York), political capital (Washington DC), and numerous Fortune 500 headquarters.
PST to EST Time Difference Explained
Constant Difference: EST is always 3 hours ahead of PST - when it's 12:00 PST, it's 15:00 EST
Why it's simple: Both time zones change DST on the same dates (2nd Sunday March, 1st Sunday November)
Winter (PST/EST): 3 hours - Los Angeles 09:00 = New York 12:00
Summer (PDT/EDT): 3 hours - Los Angeles 09:00 = New York 12:00
Practical Impact: US coast-to-coast coordination is straightforward - just add 3 hours, no DST complexity like international conversions
Business Advantage: Synchronized DST changes mean no schedule disruption during spring/fall transitions
Travel Planning: West Coast to East Coast
Flight Duration: LAX/SFO to JFK/BOS = 5-6 hours eastbound, adds 3 hours for time zone
Red-Eye Strategy: Overnight flights (23:00 PST departure, arrive 07:00 EST) maximize productivity
Best Departure: Morning PST flights (08:00-10:00) arrive East Coast late afternoon (16:00-18:00 EST)
Return Travel: Westbound afternoon departures (14:00 EST) arrive LA same evening (17:00 PST)
Jet Lag: Minimal - 3-hour difference rarely causes issues, adjust sleep 1-2 hours before travel
Business Travel: Same-day round trips possible but exhausting (12+ hours travel + 6 hours flight)
Time Zone Tool: Use our converter to coordinate meetings during your cross-country trip
PST to EST Conversion - Frequently Asked Questions
What is the time difference between PST and EST?
EST (Eastern Standard Time) is 3 hours ahead of PST (Pacific Standard Time) year-round.
Key conversion examples:
- 00:00 PST = 03:00 EST
- 09:00 PST = 12:00 EST
- 12:00 PST = 15:00 EST
- 18:00 PST = 21:00 EST
This constant 3-hour offset remains the same throughout the year because both time zones observe DST simultaneously. Both switch between standard time (PST/EST, November-March) and daylight time (PDT/EDT, March-November) on the same dates.
How do I convert PST to EST?
To convert PST to EST: Simply add 3 hours to PST time year-round.
Example conversions:
- 09:00 PST = 12:00 EST
- 12:00 PST = 15:00 EST
- 18:00 PST = 21:00 EST
- 22:00 PST = 01:00 EST (+1 day)
The 3-hour difference remains constant because both time zones observe DST on the same schedule. Use our converter above for instant conversions across any date.
What is the best time for meetings between PST and EST zones?
Optimal meeting window: 09:00-13:00 PST = 12:00-16:00 EST
This window works best because:
- For US West Coast: Mid-morning to early afternoon (core business hours)
- For US East Coast: Noon to mid-afternoon (core business hours)
- Sweet spot: 10:00 PST = 13:00 EST works perfectly for cross-country teams
This provides comfortable working hours for both Los Angeles and New York teams without requiring early mornings or late evenings for either coast.
Does the PST to EST time difference ever change?
No, the PST to EST time difference remains constant at 3 hours year-round.
Here's why:
- Both US Pacific and US Eastern observe Daylight Saving Time on the exact same dates
- PST becomes PDT and EST becomes EDT simultaneously (mid-March)
- Both revert back on the same date (early November)
- The 3-hour offset is maintained throughout all transitions
This synchronized DST schedule makes PST/EST conversion the simplest among US time zones.
What cities are in the PST timezone?
Major cities in PST/PDT (UTC-8/-7):
- Los Angeles, CA - 3.9 million (Entertainment capital)
- San Francisco, CA - 815K (Tech hub)
- San Diego, CA - 1.4 million (Biotech center)
- Seattle, WA - 749K (Tech & aerospace)
- Portland, OR - 653K (Manufacturing)
- Las Vegas, NV - 656K (Entertainment)
- Vancouver, Canada - 675K (International gateway)
These cities switch between PST (winter, UTC-8) and PDT (summer, UTC-7) but always remain 3 hours behind EST/EDT.
What cities are in the EST timezone?
Major cities in EST/EDT (UTC-5/-4):
- New York, NY - 8.3 million (Financial capital)
- Philadelphia, PA - 1.6 million (Historic city)
- Washington, DC - 712K (US capital)
- Boston, MA - 675K (Education & tech)
- Atlanta, GA - 499K (Transportation hub)
- Miami, FL - 449K (International gateway)
- Toronto, Canada - 2.9 million (Canadian financial center)
These cities switch between EST (winter, UTC-5) and EDT (summer, UTC-4) but always remain 3 hours ahead of PST/PDT.
How do I schedule calls between US West Coast and US East Coast?
Best practices for cross-country US scheduling:
- Optimal window: 09:00-13:00 PST (12:00-16:00 EST)
- Always specify both time zones in meeting invites (e.g., "10:00 PST / 13:00 EST")
- Remember the constant 3-hour difference - it never changes
- Sweet spot: 10:00 PST = 13:00 EST for balanced meeting times
- DST synchronization: Both coasts change DST simultaneously, maintaining the offset
Popular meeting times: 10:00 PST = 13:00 EST (early afternoon both coasts), 11:00 PST = 14:00 EST (mid-day coordination), 12:00 PST = 15:00 EST (afternoon check-ins).
Need more help? Check our complete FAQ section.
View Complete FAQAmericas
- PST/PDT: Pacific Standard/Daylight Time (UTC-8/-7)
- MST/MDT: Mountain Standard/Daylight Time (UTC-7/-6)
- CST/CDT: Central Standard/Daylight Time (UTC-6/-5)
- EST/EDT: Eastern Standard/Daylight Time (UTC-5/-4)
- AST/ADT: Atlantic Standard/Daylight Time (UTC-4/-3)
- BRT: Bras?lia Time (UTC-3)
- ART: Argentina Time (UTC-3)
Europe & Africa
- GMT/BST: Greenwich Mean Time/British Summer Time (UTC+0/+1)
- CET/CEST: Central European Time/Summer Time (UTC+1/+2)
- EET/EEST: Eastern European Time/Summer Time (UTC+2/+3)
- MSK: Moscow Time (UTC+3)
- WAT: West Africa Time (UTC+1)
- CAT: Central Africa Time (UTC+2)
- EAT: East Africa Time (UTC+3)
Asia & Pacific
- IST: India Standard Time (UTC+5:30)
- CST: China Standard Time (UTC+8)
- JST: Japan Standard Time (UTC+9)
- KST: Korea Standard Time (UTC+9)
- AEST/AEDT: Australian Eastern Standard/Daylight Time (UTC+10/+11)
- NZST/NZDT: New Zealand Standard/Daylight Time (UTC+12/+13)
- HST: Hawaii Standard Time (UTC-10)