If your employees have a different number of working hours per day during the week, e.g. Monday-Thursday 8 hours and Friday 5 hours, we recommend that the vacation account runs in hours. This is to ensure that your employees do not accumulate or use too much vacation, depending on which days you are off or accumulate on.
You need to follow the same steps as we have described in I have employees working part time with different workday lengths. Can I set up automatic accumulation of vacation days in TimeLog?.