There has been a small change on the site in that it now displays the actual date when a tournament finished ( rather than the number of days since it finished). The site will try to display the correct local date based on the tournament's listed country, but for some countries that span multiple time zones the displayed date may in some odd cases be off by one day. (Since the site only knows the country and not the exact time zone.)

More importantly perhaps, one should note that all other use of dates on the site will use UTC time, which may then differ from the displayed date. E.g. dates used for statistical periods, the filtering of results, or dates returned by the API; these are all working by UTC time and does not take the tournament location into account.