Casablanca to AST
-5hCasablanca
UTC+01:00SOURCEAST
ASTGreen rows indicate typical business hours (9 AM - 5 PM)
UTC+01:00 and AST on the World Map
The map below highlights the UTC+01:00 (Western European Time) and AST (Atlantic Standard Time) timezone regions across the globe.
WET – Western European Time
UTC+00:00Western European Time (WET) is the time zone for Portugal, Morocco, and the Canary Islands, same as UTC+00:00.
- •Portugal is the only mainland European country in the WET time zone.
- •The Canary Islands are on WET despite being part of Spain (which uses CET).
- •WET is identical to GMT and UTC+00:00.
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.
Casablanca to AST Time Difference – Complete Guide
Casablanca runs on Western European Time (UTC+01:00) at UTC+01:00. AST runs on Atlantic Standard Time (AST) at UTC-04:00. That puts Casablanca 5 hours behind AST — a difference of -5h at the current offsets.
In practice, when it is 9:00 AM in Casablanca it is 4:00 AM in AST. Midnight in Casablanca is 7:00 PM in AST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Casablanca to AST time conversion table
| Casablanca (UTC+01:00) | AST (AST) | Day |
|---|---|---|
| 12:00 AM | 7:00 PM | previous day |
| 6:00 AM | 1:00 AM | same day |
| 7:00 AM | 2:00 AM | same day |
| 8:00 AM | 3:00 AM | same day |
| 9:00 AM | 4:00 AM | same day |
| 12:00 PM | 7:00 AM | same day |
| 3:00 PM | 10:00 AM | same day |
| 5:00 PM | 12:00 PM | same day |
| 6:00 PM | 1:00 PM | same day |
| 9:00 PM | 4:00 PM | same day |
Why people convert Casablanca to AST time
- Scheduling a call from Casablanca to AST: a 10:00 AM start in Casablanca lands at 5:00 AM in AST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Casablanca and AST are inside the 9-to-5 working day between 2:00 PM and 5:00 PM UTC+01:00 time (9:00 AM–12:00 PM AST). That is roughly 3 hours of usable overlap.
- Coordinating a Casablanca-based team with AST contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM UTC+01:00" is unambiguous; "3 PM" across a -5h gap is not.
- Block 2:00 PM–5:00 PM UTC+01:00 as the recurring meeting window if you work primarily from Casablanca and need AST colleagues present.
- Casablanca: Clocks fall back on Sun, Feb 7, 2027. Re-check this page after that date because the offset changes and so does the -5h gap.
About WET (Western European Time)
Western European Time (WET) is used in Portugal, the Canary Islands (Spain), Morocco, and several other locations. It is equivalent to GMT/UTC. During summer, Portugal and the Canary Islands switch to WEST (Western European Summer Time, UTC+01:00).
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 Casablanca and AST
Both Casablanca and AST sit inside the 9 AM – 5 PM working day between 2:00 PM–5:00 PM UTC+01:00, which is 9:00 AM–12:00 PM AST. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Casablanca and AST overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.
Casablanca is 5 hours behind AST (UTC+01:00 UTC+01:00 → AST UTC-04:00). The shared working window is 2:00 PM–5:00 PM UTC+01:00. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Casablanca
❄ Currently in Standard Time
Standard: UTC+01:00 · DST: UTC+00:00
Clocks fall back on Sun, Feb 7, 2027
AST
☀ Currently in DST
Standard: UTC-04:00 · DST: UTC-03:00
Clocks fall back on Sun, Nov 1, 2026
⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.
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 Casablanca and AST?
Casablanca (UTC+01:00, UTC+01:00) is 5 hours behind AST (AST, UTC-04:00). The gap is currently -5h.
How do I convert Casablanca time to AST time?
Add -5h to Casablanca local time. For example, 9:00 AM in Casablanca is 4:00 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 -5h offset from Casablanca.
What is the best time to call AST from Casablanca?
Call between 2:00 PM and 5:00 PM UTC+01:00 — that maps to 9:00 AM–12:00 PM AST and keeps both parties inside the working day.
Which is behind, Casablanca or AST?
Casablanca is 5 hours behind AST. When it is 12:00 PM in Casablanca it is 7:00 AM in AST.
Do Casablanca and AST use different time zones?
Casablanca (Morocco) uses UTC+01:00 at UTC+01:00, while AST uses AST at UTC-04:00. The IANA identifiers are Africa/Casablanca and America/Halifax.
Does daylight saving time affect the Casablanca–AST difference?
Neither zone observes daylight saving time, so the -5h offset between Casablanca and AST is fixed all year.
Which other cities share Casablanca's time zone?
UTC+01:00 also covers Lisbon, Porto, Casablanca, Las Palmas, Funchal, Rabat.
Which countries use UTC+01:00, Casablanca's zone?
UTC+01:00 is used in Portugal, Spain (Canary Islands), Morocco, Western Sahara.
Is there a day difference between Casablanca and AST?
Not normally. The -5h gap only pushes the date over the previous day.
What is the time difference between Casablanca and AST?
AST is -5h from Casablanca.
What timezone is Casablanca in?
Casablanca operates on its local timezone.
What timezone is AST in?
AST operates on its local timezone.
Which countries use WET (Western European Time)?
WET is used in Portugal, Spain (Canary Islands), Morocco, Western Sahara.
Does WET observe daylight saving time?
Yes, WET switches to WEST during summer months.
What are some interesting facts about WET?
Portugal is the only mainland European country in the WET time zone. The Canary Islands are on WET despite being part of Spain (which uses CET).
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 Casablanca, what time is it in AST?
When it is 12:00 AM (midnight) in Casablanca (WET), it is -5h later in AST (AST).
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