customize highcharts tooltip to show datetime

Question

I\'m developing a project that is expected to show this graph: http://jsfiddle.net/Kc23N/

When I click a point (tooltip) I want to show a date understandable, not th

Answer 1

You can use {value:%Y-%m-%d} template filter.

For an example:

headerFormat: '{point.key:%Y-%m-%d}
'