I've just noticed; the calendar appears to work normally and the full view (new tab) is correct, but the calendar view alongside emails shows the wrong day. E.g Today is Saturday 19 September, but the calendar shows the 19th under the Friday (F) column - highlighted in blue circle
This doesn't appear to impact on anything other than to cause me to get my days/dates mixed up.

Anyone else got this?
Is this something I can fix?
Thanks
Ken