Taken from the Parliament Website
Wednesday 3 May 2017 – Dissolution of Parliament
A proclamation will be made announcing when Parliament will meet after the general election and setting the date of the Queen’s Speech at State Opening.
Writs will be issued for elections in the UK’s 650 constituencies.
Thursday 11 May 2017 – Deadline for the delivery of nomination papers
Deadline for candidates to deliver nomination papers to Returning Officer (4pm) and deadline for candidates to withdraw (4pm).
Monday 22 May 2017 – Voter registration deadline
This is the cut-off date for UK citizens aged 18 or over to register to vote in the general election.
It also marks the deadline for voters to apply for a postal or a proxy vote.
Candidates’ nomination papers must be delivered to the local returning officer. Any candidate wishing to withdraw must do so on this date.
Election agents, who ensure the proper management of each candidate’s campaign, must also be appointed.
Tuesday 23 May 2017 – Deadline for postal vote applications
5pm on this day marks the deadline for receiving new postal vote and postal proxy applications, and for changes to existing postal or proxy votes.
Wednesday 31 May 2017 – Deadline for proxy vote applications
Deadline for applying for a proxy vote (except for emergency proxies) at 5pm.
Election day and results
Thursday 8 June 2017 – Polling day
Polling booths will be open between 7am and 10pm. Counting of votes will begin when the polls close.
The Return of Parliament
Tuesday 13 June 2017 – Parliament is expected to return for the election of the Speaker
Election of the Speaker of the House of Commons
The Speaker is elected on the first day that the House meets after the General Election.
Swearing in of MPs will take place on subsequent days
When Parliament returns, MPs start swearing the Oath of Allegiance or making an Affirmation in the Commons.
Members of the House of Lords start swearing the Oath of Allegiance or making an Affirmation in the Lords.
State Opening of Parliament
Monday 19 June 2017 – The Queen’s Speech 2017
The Queen’s Speech is delivered at the State Opening of the new Parliament.