Flipkey, as many other portals now, lets you IMPORT your Google Calendar so you don’t need to manually update the Flipkey calendar every time you have a reservation/cancellation.
Unfortunately Flipkey does this differently from other systems as Airbnb.
Portals usually consider Nights
When you block your dates in Google Calendar, you usually block nights:
In this example the blocked nights are 10, 11 and 12. Check-out is on the 13th. So:
Check-in: 10
Check-out: 13
Nights: 3
This is pretty simple to remember: you see 3 blocked nights on the calendar, you have blocked 3 nights in the apartment.
Most portals understand it this way.