This computation shows that this stopwatch is capable of measuring a 24-hour
interval with an accuracy of about 0.26 s. However, it is again important to
note that when measuring small time intervals, the resolution uncertainty of the
stopwatch must be considered. For example, if the stopwatch in Figure 8 is used
to measure a time interval of 5 s, the computed accuracy is much smaller than
the resolution of the stopwatch: