My visa is valid for two years and is for multiple entries. The duration of stay says "90 days". Does this 90 day rule apply for every 180 days period in that two years validity OR is it a total of 90 days maximum for the entire two years?
In other words, can I do the following in one year?
Month 1-3 spend in schengen Month 4-6 spend outside schengen Month 7-9 spend in schengen Month 10-12 spend outside schengen