MATLAB: How to plot time from string

MATLABtime stamp plots

I have the following time vector:
T =
'21:01'
'21:02'
'21:03'
'21:04'
and when i try to convert it into a variable I can plot:
Time2plot = datetime(T, 'inputformat','HH:mm');
it automatically assigns today and the date for it. I don't want to have a date associated to it.
Any ideas?

Best Answer

Use the 'Format' name-value pair: 
T = ['21:01'
     '21:02'
     '21:03'
     '21:04'];
Time2plot =  datetime(T, 'inputformat','HH:mm', 'Format','HH:mm')
produces: 
Time2plot = 
  4×1 datetime array
   21:01
   21:02
   21:03
   21:04
For the plot, use the xtickformat function: 
figure
plot(Time2plot, rand(4,1))
grid
xtickformat('HH:mm')
However, it still has the date associated with it below the x-axis.
The only way I can think of to get around that is: 
dn = datenum(Time2plot);
figure
plot(dn, rand(4,1))
grid
datetick('x', 'hh:mm', 'keepticks')
Experiment to get the result you want.
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