Those who think they could take on London's dark side are being invited to apply to become Sadiq Khan's nocturnal sidekick in a bid to champion the capital's night time culture.

The mayor of London is advertising for the UK's first night tsar to help him shape London's future as a 24-hour city and ensure its after-dark economy thrives.

The future night tsar will work with Mr Khan, the Night Time Commission, local authorities, businesses, the Metropolitan Police Service, Transport For London and other agencies to create a "vision for London as a 24-hour city", the job advert on the mayor's website states.

The successful applicant must demonstrate "proven leadership ability, public profile and convening power, plus a thorough understanding of the night time economy and the ability to work in a political environment," it says.

A £35,000 salary will be paid to whoever takes up the fixed-term position, which is initially for one year.

The successful applicant can expect to commit up to two and a half days per week to the task.

Anyone interested must apply with a CV and cover letter by Monday September 12 at 11.59pm.

Interviews will take place at City Hall on Wednesday the following week.

The new role follows the launch of the 24-hour Tube on the Victoria and Central underground lines on Friday, which will be rolled out to the Jubilee, Northern and Piccadilly lines this autumn.

More than 100,000 passengers took advantage of the new overnight Underground service, with about 6,500 people tapping in at Oxford Circus on Saturday night, giving a boost to London's shopping district.

The Night Tube is also expected to spark job creation, adding 2,200 new roles in services, according to a report released by consultancy group EY and business advocacy group London First.

It is forecast to add £77 million to London's economy each year by 2029, the report added.