City history

Casablanca: From Ancient Anfa to Modern Timekeeping

Founded as the Amazigh settlement of Anfa, Casablanca evolved into Morocco's economic metropolis while navigating over a century of colonial and national time zone adjustments.

744 to Present 3 chapters 5 min read

Chapter one

Name & etymology

Indigenous name

Anfa Tamazight (Berber)
"Hill, promontory, or high place"

Anfa was the ancient Amazigh settlement located on the Atlantic promontory where Casablanca now stands. In Tamazight dialects, the name denotes an elevated coastal topography.

744
c. 744 – 1468 Anfa

Hill or promontory

The original Amazigh name for the coastal settlement, which served as a major port and capital of the Barghawata kingdom until its destruction by Portuguese forces in 1468.

1515 – 1755 Casa Branca

White House

Given by Portuguese colonists who built a military fortress on the ruins of Anfa in 1515. The name referred to a distinctive white building visible to mariners.

1770 – Present ad-Dār al-Bayḍāʾ

The White House

Assigned by Alaouite Sultan Mohammed ben Abdallah when he rebuilt the ruined city and medina in the late eighteenth century following the 1755 Lisbon earthquake.

Late 18th Century – Present Casablanca

White House

Adopted by Spanish merchants trading along the Atlantic coast, then formalized globally during the French Protectorate era from 1912 onward.

Chapter two

Timezone history

Current timezone Africa/Casablanca
Standard
WEST (UTC+1)
Daylight
GMT (UTC+0, observed during Ramadan)
1913 Adoption of Greenwich Mean Time1913-10-26

Under the French Protectorate administration, official time across Morocco, including Casablanca, was standardized on Greenwich Mean Time, setting the baseline legal time.

1918 First Summer Time Introduction1918-05-01

Morocco introduced daylight saving time for the first time during World War I to conserve fuel and power, advancing local clocks by sixty minutes ahead of GMT.

1967 Royal Decree on National Legal Time1967-06-02

King Hassan II promulgated a royal decree establishing Greenwich Mean Time as Morocco's legal baseline time, granting executive authority for temporary seasonal adjustments.

2018 Permanent Adoption of UTC+12018-10-26

Moroccan Decree 2.18.855 established year-round UTC+1 as the standard legal time, keeping Casablanca permanently one hour ahead of GMT except during the holy month of Ramadan.

2026 Return to Permanent Greenwich Mean Time2026-06-25

The Moroccan government announced Decree 2.26.530 to repeal the year-round UTC+1 framework and permanently restore Greenwich Mean Time following extensive public health and circadian reviews.

Chapter three

Timekeeping milestones

Founding of Anfa in the Barghawata Kingdom Emergence of the early Amazigh port city on the Atlantic coast

The Amazigh settlement of Anfa emerged as a primary urban center and maritime port in the independent Barghawata kingdom, fostering regional trade along Morocco's Atlantic coast.

Construction of the Original Old Medina Clock Tower First European-style public clock erected in Casablanca

French military commander Charles Dessigny ordered the construction of a twenty-meter public clock tower at the old medina entrance to standardize civilian and administrative time keeping.

Completion of the Wilaya Civic Clock Tower Monumental Neo-Moorish city hall centerpiece

Architect Marius Boyer completed the Hôtel de Ville, now the Wilaya headquarters, featuring a prominent sixty-meter square clock tower that became an administrative focal point.

Reconstruction of the Old Medina Clock Tower Faithful reproduction of Casablanca's iconic civic landmark

Following the demolition of the damaged 1908 tower in 1948, municipal leaders constructed a faithful replica near United Nations Square to preserve Casablanca's historic skyline.

Inauguration of the Casablanca Tramway Modern light rail system connecting the metropolitan area

King Mohammed VI inaugurated Casablanca's modern light rail tramway system, providing synchronized, low-floor transit along a thirty-one kilometer corridor to streamline urban mobility.

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