As the BBC reports
The instructions said: “If the annual leave request that you are entering is less than a full day on the First Day or the Last Day, then please select Hours from the drop down list of values in the Part Days Unit of Measure field.
“Then select the amount of hours absent on the first day in the Fraction of Start Date field or the last day in the Fraction of End Date field.
“If the absence is only for one day, use the Fraction of Start Date field to record the hours absent.”
The winners of the awards were apparently revealed back on 10th December 2010…