Hi, I've a table like this one : Time for each task 1 00:53 2 03:12 Total Which formula should I use to obtain the result (hh:mm) of the sum of the times in the last cell of column 2? I tried this one : #+TBLFM: @>$2=vsum(@2$2..@3$2). Result : 1:4 Each of these times are calculated by org-mode for a given task. I don't know if it's possible that they could be imported directly into the table: you'll tell me about it. Thank you much Fred (real newbie with org-mode),