Timeline does not support European date format

Our EMEA offices have noticed that's been a problem in the cockpit concerning dates. In Europe, we've set it to the format DD/MM/YYYY. Gainsight is trying to serve that format. When they choose the calendar dropdown, they have no problems clicking on dates up until the 12 of each month for the DD/MM format. When they go over this date, it tells them to choose a valid date. How they've circumvented it in the cockpit so far, is by manually typing in the MM/DD/YYYY format. However, this doesn't work in the Beta timeline and we can't save the note.