What is the difference between EST and UTC?

UTC is 5 hours ahead of EST. EST means Eastern Standard Time at UTC-5, and UTC means Coordinated Universal Time at UTC+0.

Which time zone does this page use for EST?

America/New_York. An abbreviation is not a time zone — it is a label a zone wears for part of the year — so every calculation here uses a named IANA zone and says which one. If you are writing code, use America/New_York rather than the string "EST".

Does EST mean anything else?

Yes: Eastern Standard Time (Australia) at UTC+10. Australia used "EST" for its eastern states until the AEST/AEDT forms took over. Older documents still use the bare form.

Is EST a daylight saving abbreviation?

No. EST is the standard-time abbreviation. When daylight saving is in force, the same zone uses a different one.

EST to UTC

EST sits at UTC-5; UTC sits at UTC+0. That puts UTC 5 hours ahead of EST.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

Computed on a date when EST is genuinely in force — using today would be wrong for half the year, because a standard-time abbreviation does not exist in summer.

EST	UTC
00:00	05:00
01:00	06:00
02:00	07:00
03:00	08:00
04:00	09:00
05:00	10:00
06:00	11:00
07:00	12:00
08:00	13:00
09:00	14:00
10:00	15:00
11:00	16:00
12:00	17:00
13:00	18:00
14:00	19:00
15:00	20:00
16:00	21:00
17:00	22:00
18:00	23:00
19:00	00:00next day
20:00	01:00next day
21:00	02:00next day
22:00	03:00next day
23:00	04:00next day

What these abbreviations actually are

	EST	UTC
Full name	Eastern Standard Time	Coordinated Universal Time
Representative zone	America/New_York	UTC
Offset	UTC-5	UTC+0
Seasonal	Standard time	Standard time
Zone changes in 2026	2	0
Other meanings	1	None in common use

Common questions

What is the difference between EST and UTC?: UTC is 5 hours ahead of EST. EST means Eastern Standard Time at UTC-5, and UTC means Coordinated Universal Time at UTC+0.
Which time zone does this page use for EST?: America/New_York. An abbreviation is not a time zone — it is a label a zone wears for part of the year — so every calculation here uses a named IANA zone and says which one. If you are writing code, use America/New_York rather than the string "EST".
Does EST mean anything else?: Yes: Eastern Standard Time (Australia) at UTC+10. Australia used "EST" for its eastern states until the AEST/AEDT forms took over. Older documents still use the bare form.
Is EST a daylight saving abbreviation?: No. EST is the standard-time abbreviation. When daylight saving is in force, the same zone uses a different one.