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PDT vs. EST: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Published on February 15, 2024
PDT (Pacific Daylight Time) is 3 hours behind EST (Eastern Standard Time).
PDT vs. EST

Key Differences

PDT, or Pacific Daylight Time, is used in western parts of North America during daylight saving time. In contrast, EST, Eastern Standard Time, is observed in the eastern regions of North America.
Shumaila Saeed
Shumaila Saeed
Feb 15, 2024
During PDT, clocks are set an hour forward from standard time. Meanwhile, EST remains unchanged during this period, maintaining the standard time.
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Shumaila Saeed
Feb 15, 2024
PDT applies during the summer months to make better use of daylight. Conversely, EST is observed year-round in some regions, with no shift for daylight saving.
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Shumaila Saeed
Feb 15, 2024
The transition to PDT happens in the spring, moving time forward. EST, however, does not change in these areas, remaining consistent.
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Feb 15, 2024
When it's 12:00 PM in PDT, it's 3:00 PM in EST, showing a clear time difference between these zones.
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Comparison Chart

Time Zone Region

Western North America
Eastern North America
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Daylight Saving

Yes, during summer
Varies
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Standard Time Offset

UTC -7
UTC -5
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Example Location

Los Angeles
New York
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Relation to GMT/UTC

7 hours behind UTC
5 hours behind UTC
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PDT and EST Definitions

PDT

PDT is 3 hours behind EST.
When it's 5 PM in PDT, it's 8 PM in EST.
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Jan 13, 2024

EST

EST is 5 hours behind UTC.
EST is UTC-5.
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Shumaila Saeed
Jan 13, 2024

PDT

PDT is a time zone observed in the western US.
We'll meet at 10 AM PDT for the conference call.
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Shumaila Saeed
Jan 13, 2024

EST

EST is a time zone observed on the East Coast of the US.
The meeting is scheduled for 9 AM EST.
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Jan 13, 2024

PDT

PDT adjusts the clock forward by 1 hour from standard time.
Clocks are set forward for PDT in March.
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Jan 13, 2024
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EST

EST is part of the Eastern Time Zone.
New York is in the EST zone.
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PDT

PDT is part of the Pacific Time Zone.
San Francisco operates on PDT during summer.
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Jan 13, 2024

EST

EST remains constant in some areas without daylight saving.
Florida follows EST all year.
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Jan 13, 2024

PDT

PDT aims to extend evening daylight in summer.
PDT helps us enjoy longer evenings in summer.
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Shumaila Saeed
Jan 13, 2024

EST

EST is ahead of PDT by 3 hours.
When it's noon in EST, it's 9 AM in PDT.
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Jan 13, 2024

EST

(obsolete) Grace; favour.
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Jan 12, 2024

EST

Abbreviation of established
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EST

Init of w:Erhard Seminars Training, a course intended to promote satisfaction with life in the present moment, as opposed to strivings to attain it.
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Jan 12, 2024

EST

East.
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Jan 12, 2024

EST

Standard time in the 5th time zone west of Greenwich, reckoned at the 75th meridian; used in the eastern United States
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Jan 12, 2024

Repeatedly Asked Queries

What is PDT?

Pacific Daylight Time, observed in the western US during daylight saving.
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Feb 15, 2024

Is EST affected by daylight saving?

In some areas, yes, but others remain on EST year-round.
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Feb 15, 2024

How many hours is PDT behind EST?

PDT is 3 hours behind EST.
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Feb 15, 2024

What is EST?

Eastern Standard Time, observed in the eastern US.
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Feb 15, 2024

When does PDT start and end?

It starts in March and ends in November.
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Feb 15, 2024

Can a place be in both PDT and EST?

No, they are separate time zones.
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Which major cities use PDT?

Los Angeles, San Francisco.
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Does PDT change annually?

Yes, it adjusts for daylight saving in spring.
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Do all states in the PDT zone observe daylight saving?

Most do, but there are exceptions.
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Are international calls affected by PDT and EST differences?

Yes, time zone differences must be considered.
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Shumaila Saeed
Feb 15, 2024

How do businesses coordinate between PDT and EST?

By considering the 3-hour time difference.
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Feb 15, 2024

What are major cities in EST?

New York, Washington D.C.
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Are EST and EDT the same?

No, EDT is used during daylight saving in the EST zone.
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Feb 15, 2024

Is PDT always 3 hours behind EST?

Yes, during daylight saving.
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Feb 15, 2024

What happens to PDT in winter?

It reverts to standard Pacific Time (PT).
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Shumaila Saeed
Feb 15, 2024

What is the UTC offset for EST?

UTC -5.
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Shumaila Saeed
Feb 15, 2024

Does EST have an equivalent daylight saving time?

Yes, Eastern Daylight Time (EDT).
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Do digital devices automatically adjust for PDT and EST?

Most modern devices do, based on settings.
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Shumaila Saeed
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Are there any cultural impacts due to PDT and EST differences?

Minor impacts in terms of broadcast timings and work hours.
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Feb 15, 2024

What is the UTC offset for PDT?

UTC -7.
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Feb 15, 2024

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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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