Not that long ago, with the release of Qlik Sense 3.0, Qlik Sense introduced the Time-aware charts. Line charts are now able to intelligently zoom in and out when used in conjunction with a date/time dimension letting us explore the data in a very smart way.
To get a working time-aware bar or combo chart in your app you just need to make sure you are running Qlik Sense 3.1 SR2 or higher, then modify an existing bar (combo) chart or create a new one, remember you should be using a time field as the dimension for your chart. Finally you need to activate the continuous axis in the chart properties panel as shown in the animation below.