Rijau is located in Nigeria (Niger) and time zone Africa/Lagos.
Places nearby are Duku, Zuru and Dabai.
Kaduna is 186 km away, Kano is 279 km away and Ibadan is 424 km away as the crow flies.
Distances from Rijau to the most important cities in Nigeria and the world.
11.1038900°
5.2555600°
1824–1911 Malay sultanate in Southeast Asia
https://en.wikipedia.org/wiki/Riau-Lingga_Sultanate