Our school organizes two sports days every year to encourage teamwork and fitness.

I still have three personal days left this year, so I'll use one for my doctor's appointment.

I saved my vacation days for a long trip next summer.

Many students study online now a days to balance work and education.

She carefully saved her sick days for when she would need them most.

The farmer tracked degree days to predict the best planting date.

The project required 120 man-days to complete the initial phase.

People in the town still tell stories about the old days when the river ran clear and children played freely.

The historian listed all the D-Days that changed the course of the war.

The old calendar listed many feast days dedicated to local saints.