<Li> ^ France (FRA): Monaco are a club based in Monaco (which is not a UEFA member), but participate 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> Schedule for 2018--19 UEFA Champions League <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> Preliminary round </Td> <Td> 12 June 2018 </Td> <Td> 26 June 2018 (semi-final round) </Td> <Td> 29 June 2018 (final round) </Td> </Tr> <Tr> <Td> First qualifying round </Td> <Td> 19 June 2018 </Td> <Td> 10--11 July 2018 </Td> <Td> 17--18 July 2018 </Td> </Tr> <Tr> <Td> Second qualifying round </Td> <Td> 24--25 July 2018 </Td> <Td> 31 July--1 August 2018 </Td> </Tr> <Tr> <Td> Third qualifying round </Td> <Td> 23 July 2018 </Td> <Td> 7--8 August 2018 </Td> <Td> 14 August 2018 </Td> </Tr> <Tr> <Td> Play - off </Td> <Td> Play - off round </Td> <Td> 6 August 2018 </Td> <Td> 21--22 August 2018 </Td> <Td> 28--29 August 2018 </Td> </Tr> <Tr> <Td> Group stage </Td> <Td> Matchday 1 </Td> <Td> 30 August 2018 (Monaco) </Td> <Td_colspan="2"> 18--19 September 2018 </Td> </Tr> <Tr> <Td> Matchday 2 </Td> <Td_colspan="2"> 2--3 October 2018 </Td> </Tr> <Tr> <Td> Matchday 3 </Td> <Td_colspan="2"> 23--24 October 2018 </Td> </Tr> <Tr> <Td> Matchday 4 </Td> <Td_colspan="2"> 6--7 November 2018 </Td> </Tr> <Tr> <Td> Matchday 5 </Td> <Td_colspan="2"> 27--28 November 2018 </Td> </Tr> <Tr> <Td> Matchday 6 </Td> <Td_colspan="2"> 11--12 December 2018 </Td> </Tr> <Tr> <Td> Knockout phase </Td> <Td> Round of 16 </Td> <Td> 17 December 2018 </Td> <Td> 12--13 & 19--20 February 2019 </Td> <Td> 5--6 & 12--13 March 2019 </Td> </Tr> <Tr> <Td> Quarter - finals </Td> <Td> 15 March 2019 </Td> <Td> 9--10 April 2019 </Td> <Td> 16--17 April 2019 </Td> </Tr> <Tr> <Td> Semi-finals </Td> <Td> 19 April 2019 </Td> <Td> 30 April--1 May 2019 </Td> <Td> 7--8 May 2019 </Td> </Tr> <Tr> <Td> Final </Td> <Td_colspan="2"> 1 June 2019 at Wanda Metropolitano, Madrid </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 group stage of the champions league start