This is the official manual for the latest Org-mode release.
If you want to compute time values use the
T flag, either in Calc
formulas or Elisp formulas:
| Task 1 | Task 2 | Total | |---------+----------+----------| | 2:12 | 1:47 | 03:59:00 | | 3:02:20 | -2:07:00 | 0.92 | #+TBLFM: @2$3=$1+$2;T::@3$3=$1+$2;t
Input duration values must be of the form
[HH:MM[:SS], where seconds
are optional. With the
T flag, computed durations will be displayed
HH:MM:SS (see the first formula above). With the
computed durations will be displayed according to the value of the option
org-table-duration-custom-format, which defaults to
will display the result as a fraction of hours (see the second formula in the
Negative duration values can be manipulated as well, and integers will be considered as seconds in addition and subtraction.