MATLAB: How to get successive difference and later add all the difference

data

735954.715277778 735954.716412037 735954.717766204 735954.717824074 735954.717916667 735954.863611111 735955.043206019 735955.043773148 735969.629212963 735969.629421296 735969.634259259 735969.743506944 735969.744884259 735969.745000000 735969.745590278 735969.745949074 735969.749062500 735969.818958333 735969.826678241 735969.826793982……
These are the timestamps. I want difference between successive timestamps like (2-1) second minus first, fourth minus third (4-3) and so on and add the difference.I want final result in minutes. Like (2-1)+(4-3)+(6-5)…… Any Suggestions on how to solve it?

Best Answer

 x = [735954.715277778 735954.716412037 735954.717766204 735954.717824074 735954.717916667 735954.863611111 735955.043206019 735955.043773148];
 x = diff(x);
 d = sum(x(1:2:end));
 [~,~,~,h, mn, s] = datevec(datetime(d,'ConvertFrom','datenum','Format','hh:mm:ss'));
 dmin = h*60+mn+s/60;
dmin =
      212.333330729167
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