Oeiras is located in Brazil (Piauí) and time zone America/Fortaleza.
Places nearby are Inhuma, Picos and Valença do Piauí.
Fortaleza is 463 km away, Salvador is 716 km away and Belo Horizonte is 1,426 km away as the crow flies.
Distances from Oeiras to the most important cities in Brazil and the world.
-7.0252800°
-42.1311100°
Private ib world school in Lisbon, Portugal
https://en.wikipedia.org/wiki/Oeiras_International_School