In the vast majority of cases, an employee will start and finish on the same day.  For example, the employee will start at 09:00 on Monday and finish at 17:30 on the same day.

However, for some companies, employees can work night shifts or overtime which can mean they roll over onto the next day.

Natural HR contains built in logic to ensure that the end time is after the start time when entering a timesheet but in these scenarios, this will cause a problem.  An error message will be displayed and the system will prevent this entry from being submitted.

To overcome this, there is an option in:

Administration -> Company -> Settings -> Timesheets -> Timesheets settings 

Here you will find a field entitled "Timesheets Midnight Rollover" - if you set this to "Yes" the start and end time check is disabled, which will allow you to enter a start time of for example, 2200 and a finish time of 0400 (the next day) without the error occurring.