From mboxrd@z Thu Jan  1 00:00:00 1970
From: Leo Gaspard <orgmode@leo.gaspard.io>
Subject: Setting timestamp from end time and an interval
Date: Fri, 16 Nov 2018 23:17:15 +0900
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To: emacs-orgmode@gnu.org

Hello,

I find myself often working intervals =E2=80=9Cbackwards=E2=80=9D, eg. when=
 planning
transportation: I need to be there at XX:YY, thus need to depart 35min
before.

Org-mode has this great feature that when typing `11:12+00:35` it
automatically computes the interval 11:12-11:47.

What I'm wondering is, whether there'd be interest in having
eg. `11:47+-00:35`, that'd create the same interval but from an *end*
time and interval duration.

What do you think about this? Is there already a way of doing this I
don't know of?

Cheers,
Leo