I discovered the excellent org-analyzer tool and used it to analyze my clock entries in Emacs org-mode.

Unfortunately the results are not usable yet, because there are a lot (dozens) of faulty clock entries. Most of them are "over night", so I worked on something in the afternoon, forgot to clock out and then the clock-out was generated the next morning.

My question: how can I get a list of all clock intervals with 2 different dates, e. g.

CLOCK: [2020-07-24 Fri 15:38]--[2020-07-25 Sat 08:38] => 17:00

  • How can I create a search agenda to list all of them, so that I can fix them manually? Criteria would be 2 different days like in the example above. (Or is there some other way in Emacs to search all .org files in a directory for such entries and easily edit the faulty lines?)

  • or is there already a tool for cleaning up such clock entries in org-mode?

1 Answer 1


Use elgrep which is available on Melpa.

After a successful install, call M-x elgrep-menu or you click on the menu entry ToolsElgrep.

There are two features that make elgrep especially suited for that task:

  1. Specify whole lines that start with CLOCK: as search records.
    • You can do so by setting Beginning of Record to Regexp and typing ^ *CLOCK: into the corresponding text field.
    • Also set End of Record to Regexp and set the text field to $ to specify the end of line as record end.
  2. Instead of a single regexp use a list of regexps with one positive regexp and one negative one.
    • You can leave the positive regexp empty. In that case also CLOCK-lines with missing time stamps or with only a single time stamp are detected.
    • An exclamation mark ! at the beginning of the second regexp negates the regexp. That means that only such records are listed that match the first regexp but not the second one. Behind the ! use a regexp that matches a time interval starting and ending on the same day, i.e., including the exclamation mark

You get all the above settings automatically if you paste the following line into the first Form: line of the Elgrep call list and click the [SET] button above the input field.

(elgrep/i "~/" "\\.org\\'" ("" "!\\[\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\}\\).*\\]--\\[\\1.*\\]") :r-beg "^ *CLOCK:" :r-end "$" :async t)

You just need to replace ~/ in the text field for Directory with the right path. Completion by M-TAB works in that text field.

If you need that kind of search more often for a certain directory I suggest you run the search once and afterwards give the search a name in the Elgrep call list. Those named Elgrep calls are preserved in the call list and you can even directly run them with the [RUN] button.

The search results are listed in the *elgrep* buffer. That buffer has an Elgrep menu where you can activate Elgrep-edit (bound to C-c C-e). Afterwards you can edit the clock lines to your liking and save the buffer with C-x C-s. This modifies and saves the matching lines of the original buffers.

Background info: Named elgrep calls are automatically stored in the elgrep-data-file relative to the user-emacs-directory.

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