Originally Posted by
Thermae
By the time we reach the 180th day since our first day in copenhagen, we would have spent less than 90 days in the schengen area. Now because that 180 days has gone by since that first day in copenhagen, it will reset the 90 days and we can continue to do more time in the schengen region - is this correct?
Your interpretation is correct. However, please keep in mind that different Schengen states have slightly different interpretations of how to calculate the 90 days. Some only use day of arrival and not day of departure (hence arrival Sunday departure Monday = 1 day), while others calculate both arrival and departure (hence arrival Sunday departure Monday = 2 days). So if you are coming very close to the 90 in 180 limitation, I would suggest you use the latter interpretation to be on the safe side.