Easy to use tool for validating visits to the Schengen Area according to the 90/180 day rule. Select or swipe to book those days already travelled, then book the days that you wish to travel in the future. Schengen Diary will validate bookings to ensure that the Schengen 90/180 day rule isnt broken. Bookings do not need to be entered in chronological order. Dates that turn green are valid, dates that turn red are not. Select any date highlighted red to determine why booking the date would break the rule, and what might be done to fix it. Print validated booking summary and details for future reference.