I am having trouble getting the tickmark aligned to datetime axis.
The sample http://jsfiddle.net/gh/get/library/pure ... o/heatmap/ has the same behaviour I am seeing where the tick mark for time 0:00 is not at 0:00 but halfway though the hour.
I have tryied setting tickmarkPlacement to between but it does have any effect.
How can I align the tickmark to align with the start of the x axis?