Daily Challenges 7-day bar chart should use dates consistent with daily naming

Currently the dates displayed as labels for the bar chart viewable here: https://www.geoguessr.com/daily-challenges seem to be taken from the time you played the daily, which can e.g. result for two dailies in a row displaying the same date.
The date is also not consistent with the 'canonical' date for each daily, i.e. the one displayed in the 'Previous winners' table at the bottom of the same webpage.
I think it'd be neat if canonical dates were used for the 7-day bar chart.