Greece to AST
-7hGreece
EESTSOURCEAST
ASTGreen rows indicate typical business hours (9 AM - 5 PM)
EEST and AST on the World Map
The map below highlights the EEST (Eastern European Time) and AST (Atlantic Standard Time) timezone regions across the globe.
EET – Eastern European Time
UTC+02:00Eastern European Time (EET) is used in Eastern Europe, the Middle East, and northeastern Africa, 2 hours ahead of UTC.
- •EET covers countries across three continents: Europe, Asia, and Africa.
- •Cairo is the most populous city in the EET zone.
- •Turkey used to be on EET but permanently moved to UTC+03:00 in 2016.
- •Finland, the Baltic states, and Greece all use EET.
AST – Atlantic Standard Time
UTC-04:00Atlantic Standard Time (AST) is the time zone for the Canadian Atlantic provinces and the Caribbean, 4 hours behind UTC.
- •Puerto Rico uses AST year-round and does not observe DST.
- •AST is 1 hour ahead of EST.
- •Halifax, the capital of Nova Scotia, is the largest city in AST Canada.
Comparing Time Zones: Greece and AST
Greece runs on Eastern European Summer Time (EEST) at UTC+03:00, currently observing daylight saving time. AST runs on Atlantic Standard Time (AST) at UTC-04:00. That puts Greece 7 hours behind AST — a difference of -7h at the current offsets.
In practice, when it is 9:00 AM in Greece it is 2:00 AM in AST. Midnight in Greece is 5:00 PM in AST.Greece observes daylight saving time while AST does not, so the gap narrows or widens by an hour part of the year.
Greece to AST time conversion table
| Greece (EEST) | AST (AST) | Day |
|---|---|---|
| 12:00 AM | 5:00 PM | previous day |
| 6:00 AM | 11:00 PM | previous day |
| 7:00 AM | 12:00 AM | same day |
| 8:00 AM | 1:00 AM | same day |
| 9:00 AM | 2:00 AM | same day |
| 12:00 PM | 5:00 AM | same day |
| 3:00 PM | 8:00 AM | same day |
| 5:00 PM | 10:00 AM | same day |
| 6:00 PM | 11:00 AM | same day |
| 9:00 PM | 2:00 PM | same day |
Why people convert Greece to AST time
- Scheduling a call from Greece to AST: a 10:00 AM start in Greece lands at 3:00 AM in AST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Greece and AST are inside the 9-to-5 working day between 4:00 PM and 5:00 PM EEST time (9:00 AM–10:00 AM AST). That is roughly 1 hours of usable overlap.
- Booking travel or deliveries: tracking AST local time against Greece keeps pickup windows and arrival estimates honest across the -7h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM EEST" is unambiguous; "3 PM" across a -7h gap is not.
- Block 4:00 PM–5:00 PM EEST as the recurring meeting window if you work primarily from Greece and need AST colleagues present.
- Greece: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the -7h gap.
About EET (Eastern European Time)
Eastern European Time (EET) covers a wide geographical area including Eastern Europe (Finland, Greece, Romania, Bulgaria, Ukraine), the Middle East (Israel, Lebanon, Jordan), and northeastern Africa (Egypt, Libya). During summer, most EET countries switch to Eastern European Summer Time (EEST, UTC+03:00). Turkey permanently moved to UTC+03:00 in 2016, effectively leaving EET.
About AST (Atlantic Standard Time)
Atlantic Standard Time (AST) covers Canada's Atlantic provinces (Nova Scotia, New Brunswick, Prince Edward Island, and most of Labrador), as well as several Caribbean nations. Puerto Rico and the US Virgin Islands use AST year-round without daylight saving time. The Canadian provinces switch to Atlantic Daylight Time (ADT) in summer.
Best time to call between Greece and AST
Both Greece and AST sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM EEST, which is 9:00 AM–10:00 AM AST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Greece and AST overlap for only 60 minutes (4:00 PM–5:00 PM EEST), so meetings have to be booked precisely.
Greece is 7 hours behind AST (EEST UTC+03:00 → AST UTC-04:00). The shared working window is 4:00 PM–5:00 PM EEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Greece
☀ Currently in DST
Standard: UTC+02:00 · DST: UTC+03:00
Clocks fall back on Sun, Oct 25, 2026
AST
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Greece and AST?
Greece (EEST, UTC+03:00) is 7 hours behind AST (AST, UTC-04:00). The gap is currently -7h.
How do I convert Greece time to AST time?
Add -7h to Greece local time. For example, 9:00 AM in Greece is 2:00 AM in AST.
What time is it in AST right now?
AST uses AST at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -7h offset from Greece.
What is the best time to call AST from Greece?
Call between 4:00 PM and 5:00 PM EEST — that maps to 9:00 AM–10:00 AM AST and keeps both parties inside the working day.
Which is behind, Greece or AST?
Greece is 7 hours behind AST. When it is 12:00 PM in Greece it is 5:00 AM in AST.
Do Greece and AST use different time zones?
Greece (Greece) uses EEST at UTC+03:00, while AST uses AST at UTC-04:00. The IANA identifiers are Europe/Athens and America/Halifax.
Does daylight saving time affect the Greece–AST difference?
Yes at the moment: Greece is on daylight saving time and AST is not, so the -7h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Greece's time zone?
EEST also covers Cairo, Athens, Helsinki, Bucharest, Kyiv, Sofia, Jerusalem, Tel Aviv and 4 more.
Which countries use EEST, Greece's zone?
EEST is used in Finland, Greece, Romania, Bulgaria, Ukraine, Egypt, Israel, Lebanon and 9 more.
Is there a day difference between Greece and AST?
Not normally. The -7h gap only pushes the date over the previous day.
What is the time difference between Greece and AST?
AST is -7h from Greece.
What timezone is Greece in?
Greece operates on its local timezone.
What timezone is AST in?
AST operates on its local timezone.
Which countries use EET (Eastern European Time)?
EET is used in Finland, Greece, Romania, Bulgaria, Ukraine, Egypt, and 11 more countries.
Does EET observe daylight saving time?
Yes, EET switches to EEST during summer months.
What are some interesting facts about EET?
EET covers countries across three continents: Europe, Asia, and Africa. Cairo is the most populous city in the EET zone.
Which cities are in the AST timezone?
Major cities in the AST timezone include Halifax, San Juan, Santo Domingo, Caracas, La Paz, Fredericton, Charlottetown.
What is the UTC offset for AST?
Atlantic Standard Time (AST) is at UTC-04:00. During daylight saving time, it shifts to ADT.
What should I know about the AST timezone?
Puerto Rico uses AST year-round and does not observe DST. AST is 1 hour ahead of EST.
When is it midnight in Greece, what time is it in AST?
When it is 12:00 AM (midnight) in Greece (EET), it is -7h later in AST (AST).
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