How to display time series in HH:MM?

I'm using MATLAB ONLINE.

My code is:

car20 = timeseries(demandVehicleAveraged(:,1),0:1439);
car20.Name = 'Car 20';
car20.TimeInfo.Units = 'HH:MM';
car20.TimeInfo.Format = 'HH:MM';
plot(car20,'-b')
grid on

hold on

car20_2 = timeseries([demandVehicleSimplified(:,1);demandVehicleSimplified(1,1)],0:60:1440);
car20_2.Name = 'Car 20_2';
car20.TimeInfo.Units = 'HH:MM';
car20.TimeInfo.Format = 'HH:MM';
grid on
plot(car20_2,'-m')

The result x-axis of the code is in 1:1440. How to change it in hh:mm format? I'm following https://www.mathworks.com/help/matlab/ref/timeseries.plot.html#d117e1137935 and searching through the community and find no result.