Calculate time range in org-mode table
问题 Given a table that has a column of time ranges e.g.: | <2015-10-02>--<2015-10-24> | | <2015-10-05>--<2015-10-20> | .... how can I create a column showing the results of org-evalute-time-range? If I attempt something like: #+TBLFM: $2='(org-evaluate-time-range $1) the 2nd column is populated with Time difference inserted in every row. It would also be nice to generate the same result from two different columns with, say, start date and end date instead of creating one column of time ranges out