A motion filed in the National Council would raise Switzerland's legal minimum holiday from four weeks to five for every employee.
The left says the change would bring low-wage sectors like agriculture into line with better-paid industries, arguing it is a matter of fairness.
Employers push back, warning that an extra week of paid leave would raise labour costs by around 2% a year.
For workers still stuck on the legal minimum, mainly in agriculture and other low-wage trades, it could mean a meaningful lift in their working year.
The motion now heads for parliamentary debate.
New app launch in Neuchâtel
Rhône project consultation announced
Landmark store for Coop
Progress in Winter Olympics bid
Health insurance premium rises next year
No snow on Matterhorn
