Birthday import uses wrong date format, mixes up MM/DD with DD/MM
I'm based in the UK, where we use a DD/MM/YYYY date format. I've exported my Outlook (desktop) version contacts to a CSV file. Someone with a birthday on Sept 1st shows as 01/09/1900. Now I import that contacts CSV file into the "People" section in web Outlook.com. The person with birthday on Sept 1 is all of a sudden swapped around to have a birthday on Jan 9! All birthdays where the day is >12 are completely ignored, and I had to add them by hand.
All this happens even though I have changed my date format on outlook.com to be the UK format DD/MM/YYYY
I tried to add a birthday of 31 October YYYY. The Birthday calendar will not display it at all. But i i change it to 30 October YYYY then it will display it (on October 30). The field in the contact form accepts "October" in the first field and 31 in the 2nd field and the YYYY in the 3rd field. This must reflect how SERIOUS THIS BUG IS and it should be fixed immediately