City history
From the ancient oasis settlement of Hajr to a modern global metropolis, Riyadh transitioned from traditional local sunset timekeeping to standardized UTC+3 Arabia Standard Time.
Chapter one
Earliest documented name
"Walled settlement, stone fortification, or enclosure"
Founded around the 5th century CE by the Banu Hanifa tribe, Hajr (or Hajr al-Yamamah) served as the primary settlement of the historical Al-Yamamah region before fragmenting into smaller oasis villages that eventually formed modern Riyadh.
The Fortified Settlement of Al-Yamamah
The primary regional capital along Wadi Hanifa, established by the Banu Hanifa tribe and described by medieval travelers such as Ibn Battuta as a fertile, garden-filled city.
Local settlement and district names
Following the economic and political fragmentation of Hajr, rival agricultural towns emerged on the site before reuniting into a single fortified area.
Gardens or meadows (plural of Rawdah)
First recorded in writing by 17th-century chroniclers, referring to the lush, fertile basins formed by seasonal flooding along Wadi Hanifa and Wadi al-Batha.
Chapter two
Saudi Arabia formally standardized national civil time to UTC+3 (Arabia Standard Time), replacing the traditional sunset-based Arabic timekeeping system where clocks were reset daily at sunset.
In October 2016, Saudi Arabia aligned public sector administrative payrolls with the solar Gregorian calendar rather than the lunar Hijri calendar to standardize fiscal management.
Chapter three
Abdulaziz Ibn Saud led a surprise raid on Al-Masmak Fortress, regaining control of Riyadh and establishing the foundational stronghold for the unification of Saudi Arabia.
The Kingdom of Saudi Arabia was officially established by King Abdulaziz, designating Riyadh as its political and administrative capital.
The automated 6-line Riyadh Metro system officially opened to passenger service in December 2024, operating 85 stations across 176 kilometers of track.