Help in weekly date time chart

[anirudhnykaa]

I am rendering a datetime chart where the range is a week( 7 days).
No matter what I do. the x axis labels are not linear (label for 1 days is always skipped). also the grid are not aligned with the x axis. Can some one help here .
Here is the link for codepen
https://codepen.io/Anirudh-Kumar-the-typescripter/pen/QWoJmbe