How to accept time from the user into a matrix?

I want to accept (say)3 time elements for example 8:30, 8:20 & 8:00 from user and store it in an array using 'datenum'. How can i achieve that? Please help.

[Febin Benjamin]

I have worked out my version here if anyone needs it in future.

dateNumArray = []; %// Store datenums here

%// Enter a blank line to quit this loop
while true
    timestr = input('Enter a time: ', 's');
    if (isempty(timestr))
        break;
    end
    %// Split the string up at the ':'
    splitStr = strsplit(timestr, ':');

      %// Read in the current date as a vector
      %// Format of: [Year, Month, Day, Hour, Minute, Second]
      timeRead = clock;
      %// Replace hours and minutes with user prompt
      %// Zero the seconds
      timeRead(4:6) = [str2num(splitStr{1}) str2num(splitStr{2}) 0];

      %// Convert to datenum format
      dateNumArray = [dateNumArray datenum(timeRead)];
   end

Answer 1

[Azzi Abdelmalek]

d=input('choose 3 time in this form 8:00 8:30 9:00  ','s')
e=datenum(regexp(d,'\S+','match'))

[Febin Benjamin]

Azzi does your code mean that user can input only 3 specified time elements i.e 8:00 8:30 9:00? No right? User should be able to enter any time (e.g. 4:45 5:56 8:00).

[Azzi Abdelmalek]

No , he can enter any number of time he wants, just choose your message