What is the time difference between PST and EST?

Eastern Standard Time (EST) is 3 hours ahead of Pacific Standard Time (PST). PST uses a UTC offset of UTC-7, while EST uses UTC-4. For example, when it's 9:00 AM in PST, it's 12:00 PM in EST. Note that this difference may shift by one hour during daylight saving time transitions if the two zones change on different dates. Use the conversion table above to see the exact time for each hour of the day.

How do I convert PST to EST?

To convert PST to EST, add 3 hours to the PST time. For example, 9:00 AM PST is 12:00 PM EST, and 5:00 PM PST is 8:00 PM EST. Keep in mind that during daylight saving time transitions, the offset between these timezones may temporarily change by one hour. You can also use the interactive converter above for quick, accurate results.

What time is it in EST when it's noon in PST?

When it's 12:00 PM (noon) in PST, it's 3:00 PM in EST. This is because EST is 3 hours ahead of PST. Similarly, when it's 6:00 PM in PST, it's 9:00 PM in EST. During daylight saving time transitions, these times may shift by one hour, so always verify the current offset. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours ahead is EST from PST?

EST is 3 hours ahead of PST. This means when it's 9:00 AM in PST, it's 12:00 PM in EST, and when it's midnight in PST, it's 3:00 AM in EST. The exact difference can vary by one hour during daylight saving time transitions. The conversion table above provides a complete hour-by-hour mapping.

Is EST ahead or behind PST?

EST is ahead of PST by 3 hours. Clocks in EST show a later time than PST, meaning the day starts earlier in EST relative to PST. For example, when it's morning in PST, it's later in the morning in EST. This gap may change by one hour during DST transitions.

Does PST observe daylight saving time?

Yes, Pacific Standard Time observes daylight saving time. During DST, the abbreviation changes to PDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard PST time. This means the UTC offset for PST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your PST to EST conversions.

Does EST observe daylight saving time?

Yes, Eastern Standard Time observes daylight saving time. During DST, the abbreviation changes to EDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard EST time. This means the UTC offset for EST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your PST to EST conversions.

What is the best time to call from PST to EST?

The best time for a call between PST and EST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in EST during their work day, call between 6:00 AM and 2:00 PM your PST time. Avoid calling too early or late, as the 3 hours difference means your evening could be their late night. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

When does daylight saving time change in PST?

Daylight saving time transitions vary by year and region. Pacific Standard Time observes DST, which typically shifts clocks forward by one hour in spring ("spring forward") and back in fall ("fall back"). During these transition periods, the time difference between PST and EST may temporarily change by one hour, which can cause confusion for scheduled meetings or calls. It's important to double-check your conversions around transition dates, especially if the two timezones switch on different dates. Check our DST change calendar for exact transition dates in the current year.

Do PST and EST ever have the same time?

No, PST and EST are always 3 hours apart and never display the same clock time simultaneously. Both timezones observe DST and typically transition around the same period, so the standard difference remains consistent throughout the year. The 3 hours offset is determined by their fixed positions relative to the Prime Meridian (UTC). You can always rely on this consistent difference when planning across these timezones.

PST to EST Converter

Convert Pacific Standard Time to Eastern Standard Time. See the hour-by-hour conversion table below.

Upcoming DST Change

Eastern Time (EDT) will fall back on November 1. Clocks will shift by 1 hour (EDT → EST).

Pacific Time (PDT) will fall back on November 1. Clocks will shift by 1 hour (PDT → PST).

View all DST changes

Timezone Details

Pacific Standard Time

10:23 PM

Saturday, October 24, 2026

PDT (UTC-07:00)

Eastern Standard Time

1:23 AM

Sunday, October 25, 2026

EDT (UTC-04:00)

Difference: +3 hours

PDT DST: Yes (PDT)

EDT DST: Yes (EDT)

24-Hour Overview

PDT — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

EDT — 24-hour overview

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

12a12a

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

EST to PST EST to GMT GMT to EST EST to IST IST to EST EST to CET CET to EST EST to JST JST to EST

Cities in These Timezones

PST Cities

Los Angeles San Diego San Francisco Seattle Las Vegas

EST Cities

New York Philadelphia Washington D.C.Boston Atlanta

More Tools

Compare PST & EST Plan a Meeting (PST & EST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Pacific Standard Time on Wikipedia Eastern Standard Time on Wikipedia IANA Time Zone Database