<P> During rush hour, up to 50 trains are on Line 1 simultaneously, 40 trains on Line 2, 6 trains on Line 3, and 4 trains on Line 4 . During non-rush hour periods, there are approximately 27 trains on Line 1 at any one time . </P> <P> On weekdays and Saturday, subway service runs from approximately 6: 00 am to 1: 30 am; Sunday service begins at 8: 00 am . Start times on holidays may vary . </P> <Table> <Tr> <Th_colspan="1"> Line </Th> <Th> Off - peak frequency </Th> <Th> Rush hour frequency </Th> </Tr> <Tr> <Td> Yonge--University </Td> <Td> 4--5 minutes </Td> <Td> 2--3 minutes </Td> </Tr> <Tr> <Td> Bloor--Danforth </Td> <Td> 4--5 minutes </Td> <Td> 2--3 minutes </Td> </Tr> <Tr> <Td> Scarborough </Td> <Td> 5--6 minutes </Td> <Td> 4--5 minutes </Td> </Tr> <Tr> <Td> Sheppard </Td> <Td> 5--6 minutes </Td> <Td> 5--6 minutes </Td> </Tr> </Table> <Tr> <Th_colspan="1"> Line </Th> <Th> Off - peak frequency </Th> <Th> Rush hour frequency </Th> </Tr>

When does the last subway run in toronto