Starting from a reference date, the ending date is calculated by adding or subtracting a user-specified number of days.If the calculated date falls on a Sunday or a national holiday, it will be displayed in red and the first non-holiday day will be automatically determined. If "Weekday suspension" is selected, the final date is calculated taking into account that the legal activities are suspended for the entire month of August; if the reference date is prior to 1 January 2015, the "weekday suspension" is calculated from 1 August to 15 September (46 days). To change the reference date, long touch on the date; to reset the data long touch on the calculated date.The user is required to verify the accuracy of the information provided. The author therefore declines any responsibility for errors, inaccuracies and omissions.