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City data by GeoNames (CC BY 4.0). Timezone data from IANA Time Zone Database.

  1. WorldClockTools
  2. Time Zone Converter
  3. WEST -> EST

Timezone converter

WEST to EST Converter.

WEST → ESTGap: -5h3h 9-5 overlap

WEST to EST currently uses Western European Time in Africa/Casablanca and Eastern Time in America/New_York as the live reference pair, with a -5h live gap. WEST to EST matters whenever Casablanca and New York City need to coordinate across a -5h gap. The WEST side covers Morocco and Portugal, while EST covers United States and Canada — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

Last updated Apr 26, 2026. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.

How this is calculated

How we calculate this
The current offset for each abbreviation is resolved against the live IANA timezone rules. Conversion accounts for DST transitions on both sides, so the gap between WEST and EST can change by an hour twice a year.
Data sources
IANA Time Zone Database (offsets, DST). City attribution from GeoNames (CC BY 4.0).
Update cadence
Page regenerates daily; live offset values reflect the moment the page is rendered.
Reverse: EST → WEST

From

WEST

Western European Time

Africa/Casablanca · GMT+1 +01:00

--:--:--

Major markets in this grouping include Casablanca, Rabat, Fes, Tangier.

To

EST

Eastern Time

America/New_York · EDT -04:00

--:--:--

Major markets in this grouping include New York City, Toronto, Brooklyn, Queens.

Scheduling snapshot

Current gap

-5h

WEST +01:00 vs EST -04:00

9-to-5 overlap

3h

WEST 2:00 PM previous day to 5:00 PM previous day

Representative countries

Morocco, Portugal, and Spain / United States, Canada, and Haiti

Based on the busiest city and zone usage found in the current dataset.

Pair context

WEST (Casablanca, +01:00) to EST (New York City, -04:00) is currently a -5h conversion. Live coverage on the WEST side is anchored by Casablanca, Rabat, Fes, and Tangier; the EST side draws from New York City, Toronto, Brooklyn, and Queens.

WEST to EST matters whenever Casablanca and New York City need to coordinate across a -5h gap. The WEST side covers Morocco and Portugal, while EST covers United States and Canada — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

This pair crosses the Atlantic, with one side in the Americas and the other in Europe or Africa. The -5h gap is small enough that there is still a real shared midday window, which is why transatlantic finance, broadcasting, and conference scheduling lean on this conversion.

Both WEST (Africa/Casablanca) and EST (America/New_York) observe daylight saving, but the shift dates do not always align. Expect short mismatch windows in spring and autumn when one side has changed and the other has not, which moves the live gap by an hour for several weeks at a time.

WEST and EST sit exactly 5h apart, with about 3h of shared 9-to-5 time. That is enough room for one daily standup plus one focused working session, which is what most cross-region teams actually use this overlap for.

Market coverage on both sides

WEST coverage on this page is led by Casablanca, Morocco, Rabat, Morocco, Fes, Morocco, and Tangier, Morocco, with 2 more in the live dataset. That mix is what makes WEST feel anchored to African business hubs in practice rather than just an abbreviation on a chart.

EST coverage is led by New York City, United States, Toronto, Canada, Brooklyn, United States, and Queens, United States, with 2 more anchoring the wider label family. Combined with the WEST side, this conversion ends up describing transatlantic finance, broadcast scheduling, and same-day cross-border product launches.

Digit-Roll Converter

Adjust the time — digits roll like an odometer. Swap button flips the zones.

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Common meeting times

WEST to EST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

WESTESTDay relation
9:00 AM4:00 AMSun, Apr 26same day
12:00 PM7:00 AMSun, Apr 26same day
3:00 PM10:00 AMSun, Apr 26same day
6:00 PM1:00 PMSun, Apr 26same day
9:00 PM4:00 PMSun, Apr 26same day

EST to WEST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

ESTWESTDay relation
9:00 AM2:00 PMSun, Apr 26same day
12:00 PM5:00 PMSun, Apr 26same day
3:00 PM8:00 PMSun, Apr 26same day
6:00 PM11:00 PMSun, Apr 26same day
9:00 PM2:00 AMMon, Apr 27next day

Operational notes

WEST to EST ranges from WEST 9:00 AM (which lands at EST 4:00 AM) through WEST 9:00 PM (EST 4:00 PM). Across this -5h gap, the middle of the WEST range usually lands in the EST afternoon — the reliable window for live calls between the two — while the early and late edges drift into EST morning or evening.

EST to WEST ranges from EST 9:00 AM (which lands at WEST 2:00 PM) through EST 9:00 PM (WEST 2:00 AM). Across this -5h gap, the middle of the EST range usually lands in the WEST afternoon — the reliable window for live calls between the two — while the early and late edges drift into WEST morning or evening.

Popular hour answers

These direct answers are here for the exact-intent searches people actually use, like “10 AM WEST to EST” or “4 PM WEST in EST”.

8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM9 PM

What is 8 AM WEST in EST?

8 AM WEST = 3:00 AM EST (03:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 AM WEST in EST?

9 AM WEST = 4:00 AM EST (04:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM WEST in EST?

10 AM WEST = 5:00 AM EST (05:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM WEST in EST?

11 AM WEST = 6:00 AM EST (06:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM WEST in EST?

12 PM WEST = 7:00 AM EST (07:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM WEST in EST?

1 PM WEST = 8:00 AM EST (08:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 2 PM WEST in EST?

2 PM WEST = 9:00 AM EST (09:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 3 PM WEST in EST?

3 PM WEST = 10:00 AM EST (10:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 4 PM WEST in EST?

4 PM WEST = 11:00 AM EST (11:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 5 PM WEST in EST?

5 PM WEST = 12:00 PM EST (12:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 6 PM WEST in EST?

6 PM WEST = 1:00 PM EST (13:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 PM WEST in EST?

9 PM WEST = 4:00 PM EST (16:00). On today's live calendar that lands on Sun, Apr 26 in EST, which means the answer is a same day conversion rather than a static offset lookup.

Overlap window and DST radar

The live gap is -5h right now, based on Africa/Casablanca at +01:00 and America/New_York at -04:00. The zones change on different dates, so there is a DST mismatch window between November 1, 2026 and February 7, 2027. During that stretch the gap shifts to -6h before settling at -5h.

The most usable workday block right now is about 3 hours: WEST 2:00 PM previous day to 5:00 PM previous day, which lines up with EST 9:00 AM previous day to 12:00 PM previous day.

America/New_York changes on November 1, 2026 at about 1:23 AM, moving from -05:00 to -05:00.
Africa/Casablanca changes on February 7, 2027 at about 2:38 AM, moving from +00:00 to +00:00.

Reference zones

Africa/Casablanca

GMT+1 · +01:00

America/New_York

EDT · -04:00

These are the busiest live references selected from the abbreviation families on this page.

Conversion Table

WESTEST
01:0020:00
02:0021:00
03:0022:00
04:0023:00
05:0000:00
06:0001:00
07:0002:00
08:0003:00
09:0004:00
10:0005:00
11:0006:00
12:0007:00
13:0008:00
14:0009:00
15:0010:00
16:0011:00
17:0012:00
18:0013:00
19:0014:00
20:0015:00
21:0016:00
22:0017:00
23:0018:00
00:0019:00

Top cities using WEST

Countries represented here include Morocco, Portugal, and Spain.

CasablancaMoroccoRabatMoroccoFesMoroccoTangierMoroccoMarrakeshMoroccoSaléMoroccoAgadirMoroccoMeknesMoroccoOujdaMoroccoLisbonPortugal

Top cities using EST

Countries represented here include United States, Canada, and Haiti.

New York CityUnited StatesTorontoCanadaBrooklynUnited StatesQueensUnited StatesMontréalCanadaPhiladelphiaUnited StatesManhattanUnited StatesThe BronxUnited StatesPort-au-PrinceHaitiOttawaCanada

FAQ

How many hours is EST ahead of WEST?
EST is currently -5h relative to WEST, using Africa/Casablanca and America/New_York as the live reference zones on this page.
What is the best workday overlap between WEST and EST?
The current 9-to-5 overlap is about 3 hours: WEST 2:00 PM previous day to 5:00 PM previous day, which matches EST 9:00 AM previous day to 12:00 PM previous day.
Does the WEST-EST time difference change during DST?
The live gap is -5h right now, based on Africa/Casablanca at +01:00 and America/New_York at -04:00. The zones change on different dates, so there is a DST mismatch window between November 1, 2026 and February 7, 2027. During that stretch the gap shifts to -6h before settling at -5h.
Which cities commonly use WEST and EST?
WEST commonly covers cities such as Casablanca, Rabat, Fes, and Tangier, while EST commonly covers cities such as New York City, Toronto, Brooklyn, and Queens.
Should I use WEST/EST or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as Africa/Casablanca and America/New_York when you need something precise in software, travel plans, or long-range scheduling.
Open Interactive Converter

Related Conversions

EST → PSTEST → CSTEST → MSTEST → GMTEST → UTCEST → ISTEST → CETEST → CESTEST → JSTEST → AESTEST → AEDTEST → BST

Related planning pages

Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.

Interactive converter

Move from this static pair into the full timezone converter with more cities and abbreviations.

Compare city pairs

Use compare pages when the practical question is overlap, not just offset arithmetic.

World clock

Open live city clocks after narrowing the timezone pair you care about.

Browse city pages

Jump into the strongest city pages when you want location-specific timezone context.