Wiktionary
working days
n. (plural of working day English)
Usage examples of "working days".
Chitling wound up his observations by stating that he had not touched a drop of anything for forty-two moral long hard-working days.
If you will take the time to complete the enclosed detailed questionnaire and return it in the enclosed postage-paid envelope, we will endeavor to respond within ten (10) working days from the arrival of your reply.
I found a total of thirty-two mails, after four working days away.
There'll be two pairs of hands to tackle it now, all working days.
He conceived no picture of the future but one made up of hard-working days such as he lived through, with growing contentment and intensity of interest, every fresh week.