From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shakthi Kannan <shakthimaan@gmail.com>
Subject: Obtain CLOCK duration from LOGBOOK drawer using Org Element
Date: Fri, 24 Mar 2017 00:47:35 +0530
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To: emacs-orgmode@gnu.org

Hi,

How can I obtain the clocked time for each CLOCK entry in the LOGBOOK
drawer using Org Element? Consider the following Org example:

=== Org sample ===

* DONE Task A
    CLOSED: [2017-03-20 Mon 12:21]
    :PROPERTIES:
    :ESTIMATED: 1.5
    :ACTUAL:
    :OWNER: foo
    :END:
    :LOGBOOK:
    CLOCK: [2017-03-20 Mon 11:45]--[2017-03-20 Mon 12:15] =>  0:30
    CLOCK: [2017-03-17 Fri 20:15]--[2017-03-17 Fri 21:45] =>  1:30
    CLOCK: [2017-03-17 Fri 12:05]--[2017-03-17 Fri 13:05] =>  1:00
    :END:

=== END ===

I would like to obtain "0:30", "1:30" and "1:00" from the LOGBOOK
CLOCK entries, sum them up and update the :ACTUAL: value in the the
PROPERTIES drawer. How can this be done?

Appreciate your inputs in this regard.

Thanks!

SK

-- 
Shakthi Kannan
http://www.shakthimaan.com