Srimad Bhagavatam Canto 05, Chapter 21, Text 12

SB 5.21.12

evam muhurtena catus-trimsal-laksa-yojanany asta-satadhikani sauro rathas trayimayo ’sau catasrsu parivartate purisu.
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Thus the chariot of the sun-god, which is trayimaya, or worshiped by the words om bhur bhuvah svah, travels through the four residences mentioned above at a speed of 3,400,800 yojanas [27,206,400 miles] in a muhurta.
Srimad Bhagavatam Canto 05, Chapter 21, Text 11
Srimad Bhagavatam Canto 05, Chapter 21, Text 13