Paramedics often work long hours, most with 12 hour shifts.

Starting in 1772,the mills ran day and night with two 12 hour shifts.

These officers worked twelve hour shifts, seven days a week.

Students would work 3 hour shifts, and it was no problem finding people willing to do 3-6 am during the week.

Workers would often work in twelve hour shifts, six days a week.

The guards typically worked 40 hours weeks; five 8 hour shifts.

We work 24 hour shifts and I'm only one shift.

On December 26, 2009 the department switched to two 12 hour shifts.

The recovery workers often spent hundreds of hours working 8 to 12 hour shifts.

They would often work 12 hour shifts, making several runs down to the coal face and back to the surface again.