In the UK, and most of the world, dates are formatted as day-month-year, 23 January 2010. It can be tricky remembering to change this.
The following is a table of holidays and notable dates for both the UK and the US. (When you’re not in the US, sometimes it’s handy to be able to quickly access American dates, some are easy to forget.) The British Holidays and Notable Dates are linked to information pages about that specific day.