UI_Chart x Axis Label

Time series is not something, the bar chart is meant for. But of course the choice is free if you can make the graph to talk in the way you can read it most easily.

There is example how to configure bar chart to 24 hours - one bar for every hour. Basics for your case remain same, create bar for every time mark you'll need to show.
Examine the example form this thread

If you need to present live (near live data with history) the new data points needed to be created and filled with data on every update where also too old data ponts will be removed