Add padding-right: 15px to wrapping div of DayHeader making it the same width as main grid. 15px is an approximation of scrollbar width (chrome), probably some calculation of scrollbar width would be a more stable solution.
Add padding-right: 15px to wrapping div of DayHeader making it the same width as main grid. 15px is an approximation of scrollbar width (chrome), probably some calculation of scrollbar width would be a more stable solution.

trotzig/react-available-times,trotzig/react-available-times