This tool calculates your 90/180-day Schengen compliance across a rolling 12-month window.
The Schengen rule states you cannot exceed 90 days in any 180-day period. This is a rolling window, meaning every single day you are in the zone, the system looks back 179 days to ensure you haven't exceeded the limit.
The scanner automatically highlights Terracotta days where an overstay is detected based on your current plan.