So Brexit is delayed once again but this time I have no doubt that it will be cleared for the UK to leave on EU by 31 January 2020 or potentially before? So my only query about this is that when the UK does officially leave the EU (should that be 31 Jan 2020) and if the 90 out of 180 day rule becomes applicable if we are abroad and inside the Schengen area will the first day of our 90 day allowance start on the day the UK leaves the EU (so the clock starts to tick on that date) or does it get backdated and start on the day we entered the Schengen area irrespective if the UK was in the EU at that time? This can have potential consequences on a trip im planning