Hello Shekar,
I don't really know how would your dataset look like so I had made this sample, JS Bin, with a very lousy dataset. Please try modify the dataset.
If you stick with stacked bar chart, you have to ensure the timestamp/date value is already in the correct format you wish it to show as this dimension value is only a string to the chart now. Chart will not do any transformation like timeseries_*** chart type.
BR,
Chapman
