About a third of British employees are working late into the night as a result of overwork, shift work and flexitime, overthrowing the traditional nine-to-five office hours, according to new research.
The workers most likely to work into the night include factory workers and tradesmen, the analysis of employment data carried out by banking firm First Direct showed.
Company directors, postal employees, hairdressers and travel agents are the people most likely to work unsociable hours, it added.
The research also found that secretaries are most likely to work a nine-to-five day, despite the fact that many managers and professional employees think traditional office hours are all but extinct.
Chris Pilling, chief executive of First Direct, said Britons have embraced the world of the five-to-nine day.
"As a result, it's no longer just factory workers and bar staff who work unusual hours," he said.
"We've seen a fundamental change in working patterns, with ever-increasing numbers of workers embracing flexitime, job shares and other innovative working arrangements," he said.
Last month, the British Chambers of Commerce revealed that the majority of UK businesses now engage in flexible working practices.
Digg 
Delicious 
Reddit 
StumbleUpon 
Google 
Technorati 
Netvouz