Month Lengths Misaligned with time series month view

[crisward]

Expected Behavior

The example should show a straight diagonal line as days go up by one, and the value goes up by one.

Current Behavior

The end of march appears to show the last 3 days aligned vertically. It looks like it's trying to fit 31 days into 28 (as though its aligned with February). This does not happen in if time unit is week or day.

Possible Solution

I suspect this is the old issue with months being zero indexed in js. I haven't gone through the source, but it is probable cause.

Steps to Reproduce (for bugs)

https://codepen.io/crisward/pen/ybqjQZ?editors=0010

Context

Trying to show a time series graph width a month scale.

Environment

• Chart.js version: 2.5.0
• Browser name and version: Chrome 58
• Link to your project:

[etimberg]

It might be a good idea to try out the latest from the master branch. We're using moment js for dates so I don't think we don't deal with the months being zero indexed directly