On what dates will Keir Starmer still be Prime Minister of the United Kingdom?

Each answer resolves YES at 00:01 on the date listed in the answer, if Keir Starmer is Prime Minister AND has been so continuously since his appointment following the 2024 election. If he loses his job for any reason (including death/firing/resignation/losing an election) then all remaining answers will resolve NO. Add more dates if you want more granularity.