Schengen visa Options
-You wouldn't need to be out of the Schengen zone for 90 continual times to "reset" the clock if you had been in and out of your Schengen zone and "used up" your 90 days. Essentially you'd probably look at your upcoming prepared Schengen entry, go back one hundred eighty days from that date, and count the amount of Schengen times you had, with the