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## [O] time tracking math is confusing

**From**: |
Ken Mankoff |

**Subject**: |
[O] time tracking math is confusing |

**Date**: |
Wed, 5 Feb 2014 11:29:58 -0500 (EST) |

**User-agent**: |
Alpine 2.00 (OSX 1167 2008-08-23) |

`I hope there a general rule I'm missing or something I'm doing
``wrong, because I find the time tracking math in Org confusing.
`

`It seems that numbers I enter (ex: 8:00, 5d) are in units of 8-hour
``days. But math that Org does is in units of 24 hour days. So If I
``have
`
* Task
:PROPERTIES:
:ID: test-task
:END:
** SubTask 1
:PROPERTIES:
:Effort: 5d
:END:
** SubTask 2
:PROPERTIES:
:Effort: 8:00
:END:

`Then the total work is 6 days (8 hour units, 48 hours) or 2d (24
``hour units, 48 hours). This makes sense to me so far.
`

`When I make a time tracking table (i'm not sure of the function
``name, but C-c C-x i and then enter "test-task" at the prompt, I see
``the following table:
`
#+BEGIN: <<cut-for-brevity>>
| Task | Effort |
|--------------+---------+
| * Task | 2d 0:00 |
| ** SubTask 1 | 5d |
| ** SubTask 2 | 8:00 |
#+END:

`This is confusing because the units (24 hour, 8 hour) are mixed. The
``top row entry, "2d", is 24 hour units, but immedediately below it,
``the "5d" entry is in 8 hour units, as is the 8:00 effort below that.
`
I can work in either unit, but mixing is confusing.

`It seems human-entered times and estimates are 8 hour, and
``Org-calculated is 24 hour. Is this always correct? The issue then is
``that there is no clear indicator of what is human and what is Org on
``this table.
`
-k.

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**[O] time tracking math is confusing**,
*Ken Mankoff* **<=**