Hi,
you convert to string your time vector (num2str function) and then convert it to date (datetime function), specifying input format as follow:
time1_str = num2str(time1);
time1_date = datetime(time1_str,'InputFormat','yyyyMMdd','Format','dd-MM-yyyy');
Note that you can decide output format (in my example is dd-MM-yyyy).
Hope this helps.
