Hello
I would assert the graph dates are off by one, considering typical standards and approaches by most graphs out there, be that say Excel or others.
In GeoDrops the date of the data is at the end of the day, I assert it is more typically expected by users to be the start of the day.
In the attached screen shot, the date is already 2nd, however the graph shows the data being plotted between 1st and 2nd, which a user would typically associate to the 1st IMHO.
Shift the graph one date to the right.
