But employees expected "give and take" and many did online shopping and social networking during the day in return for the time they put in after hours, said Mozy spokesman Steve Jensen.
Auckland business psychologist Jasbindar Singh said that executives, corporate workers and the self-employed had to work out what worked best for them and establish boundaries.
Ms Singh said the problem of a blurred work/life balance was only the case when not managed properly.
"I think people have to actively say, 'Now hang on, this is enough, after 7pm I need to spend more time with the kids and catch up with what's been happening with my family'."
A report published this year by workplace provider Regus found New Zealanders' work-life balance to be better than the global average.
A Department of Labour spokeswoman said there was no legal limit to the number of hours a day or days in a row an employee could work. It was a matter for agreement between employer and employee.
- APNZ