<Table> <Tr> <Th_colspan="2"> 2017 CFL season </Th> </Tr> <Tr> <Th_colspan="2"> Regular season </Th> </Tr> <Tr> <Th> Duration </Th> <Td> June 22, 2017--November 4, 2017 </Td> </Tr> <Tr> <Th_colspan="2"> Playoffs </Th> </Tr> <Tr> <Th> Start date </Th> <Td> November 12, 2017 </Td> </Tr> <Tr> <Th> East Champions </Th> <Td> Toronto Argonauts 2017 - 11 - 19 </Td> </Tr> <Tr> <Th> West Champions </Th> <Td> Calgary Stampeders 2017 - 11 - 19 </Td> </Tr> <Tr> <Th_colspan="2"> 105th Grey Cup </Th> </Tr> <Tr> <Th> Date </Th> <Td> November 26, 2017 </Td> </Tr> <Tr> <Th> Site </Th> <Td> TD Place Stadium, Ottawa </Td> </Tr> <Tr> <Th> Champions </Th> <Td> Toronto Argonauts </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> 2016 ← </Td> <Td> CFL seasons </Td> <Td> → 2018 </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> 2017 CFL season </Th> </Tr>

When does the canadian football league season start