What this is for
Anything longer than a single shift: how long a project ran, hours between a Friday clock-out and a Monday clock-in, the exact length of an on-call period, or time elapsed since an event. The result is shown three ways — days + hours + minutes, total hours, and total minutes — so it drops straight into whatever you're filling in.
Duration vs hours worked
This tool measures elapsed clock time, including nights and weekends. For hours worked within a shift use the hours calculator (it deducts breaks), and for a whole week of shifts the time card calculator. To express any result in payroll decimals, the decimal hours converter does the flip.