<Li> ^ France (FRA): AS Monaco is a club based in Monaco (which is not a UEFA member), but participates in the Champions League through one of the berths for France (any coefficient points they earn count towards France's total). </Li> <P> The schedule of the competition is as follows (all draws are held at the UEFA headquarters in Nyon, Switzerland, unless stated otherwise). </P> <Table> <Tr> <Th> Phase </Th> <Th> Round </Th> <Th> Draw date </Th> <Th> First leg </Th> <Th> Second leg </Th> </Tr> <Tr> <Td> Qualifying </Td> <Td> First qualifying round </Td> <Td> 19 June 2017 </Td> <Td> 27--28 June 2017 </Td> <Td> 4--5 July 2017 </Td> </Tr> <Tr> <Td> Second qualifying round </Td> <Td> 11--12 July 2017 </Td> <Td> 18--19 July 2017 </Td> </Tr> <Tr> <Td> Third qualifying round </Td> <Td> 14 July 2017 </Td> <Td> 25--26 July 2017 </Td> <Td> 1--2 August 2017 </Td> </Tr> <Tr> <Td> Play - off </Td> <Td> Play - off round </Td> <Td> 4 August 2017 </Td> <Td> 15--16 August 2017 </Td> <Td> 22--23 August 2017 </Td> </Tr> <Tr> <Td> Group stage </Td> <Td> Matchday 1 </Td> <Td> 24 August 2017 (Monaco) </Td> <Td_colspan="2"> 12--13 September 2017 </Td> </Tr> <Tr> <Td> Matchday 2 </Td> <Td_colspan="2"> 26--27 September 2017 </Td> </Tr> <Tr> <Td> Matchday 3 </Td> <Td_colspan="2"> 17--18 October 2017 </Td> </Tr> <Tr> <Td> Matchday 4 </Td> <Td_colspan="2"> 31 October--1 November 2017 </Td> </Tr> <Tr> <Td> Matchday 5 </Td> <Td_colspan="2"> 21--22 November 2017 </Td> </Tr> <Tr> <Td> Matchday 6 </Td> <Td_colspan="2"> 5--6 December 2017 </Td> </Tr> <Tr> <Td> Knockout phase </Td> <Td> Round of 16 </Td> <Td> 11 December 2017 </Td> <Td> 13--14 & 20--21 February 2018 </Td> <Td> 6--7 & 13--14 March 2018 </Td> </Tr> <Tr> <Td> Quarter - finals </Td> <Td> 16 March 2018 </Td> <Td> 3--4 April 2018 </Td> <Td> 10--11 April 2018 </Td> </Tr> <Tr> <Td> Semi-finals </Td> <Td> 13 April 2018 </Td> <Td> 24--25 April 2018 </Td> <Td> 1--2 May 2018 </Td> </Tr> <Tr> <Td> Final </Td> <Td_colspan="2"> 26 May 2018 at NSC Olimpiyskiy Stadium, Kiev </Td> </Tr> </Table> <Tr> <Th> Phase </Th> <Th> Round </Th> <Th> Draw date </Th> <Th> First leg </Th> <Th> Second leg </Th> </Tr>

When does the champions league group stage start