(Reuters) - Boris Johnson is stepping down as British prime minister, forcing the ruling Conservative Party to choose a new leader who will be announced on Sept. 5.
The winner will inherit a parliamentary majority and will become the next prime minister.
WEDNESDAY JULY 20 - FINAL SELECTION BALLOT
Conservative members of parliament chose former finance minister Rishi Sunak and Foreign Secretary Liz Truss to go through to the final stage - a vote by around 200,000 party members.
JULY-SEPTEMBER - THE RUN-OFF
The two candidates campaign among party members to secure their votes. The Conservative Party will host 12 hustings events around the country between July 28 and Aug. 31, including in Leeds, Cardiff, Manchester, Birmingham and London. These events will also be streamed online.
Party members who joined on or before June 3 are eligible to vote in the contest and will receive their ballot papers between Aug. 1-5.
Members can vote by post or online. The last vote received is the one that counts if there is any duplication. Ballots must be received by 1600 GMT on Sept. 2.
SEPT. 5 - NEW PRIME MINISTER ANNOUNCED
The party announces who has been elected by members as the new leader. The candidate with the most votes wins.
SEPT. 6 - JOHNSON HEADS TO PALACE TO RESIGN
Johnson is expected to leave office on Sept. 6, his spokesman said, adding that he would go to Buckingham Palace to tender his resignation to Queen Elizabeth.
(Reporting by Alistair Smout and Kylie MacLellan; Editing by Alison Williams/Mark Heinrich)