Making the computer ready for one single program could take many days or even weeks.

Better still, take a week or 10 days and do all three.

Thus, all your activities will take a day or two.

I've found people in less than an hour, though sometimes it can take a day or two.

Took a day or two to check them all out.

It takes about 150 days a year to do the work.

But at the most it shouldn't take more than two or three days.

It had taken two days and the night between them.

The learning process might take hours, days, or even weeks.

Writing a review can take an hour or a day.