How is the 180-day period counted?
It is a rolling window: for any day, look back 180 days including that day. On every day of your stay, the days inside Schengen in that window must be 90 or fewer.
Passport Atlas
Add your past and planned trips. We count every day inside the Schengen area over the rolling 180-day window and tell you how many days you have left and the latest date you must leave.
You need a Schengen visa; the days allowed are printed on it (the 90/180 limit still caps multiple-entry visas).
It is a rolling window: for any day, look back 180 days including that day. On every day of your stay, the days inside Schengen in that window must be 90 or fewer.
Yes. Arriving at 23:00 or leaving at 01:00 still counts as a full day.
No. Leaving pauses the count, but days only drop off once they're more than 180 days in the past.
No. All Schengen countries share one 90-day allowance.