Message-ID: <da0fe68e813f16a23fae69a3398e0f45@beuth-hochschule.de>
Date: 2012-10-30T10:25:39Z
From: paladini
Subject: subtract a time period from a date
Hello everybody,
how can I reduce e.g. 30 days from a date?
When I do the following "2011-05-01 CEST" -"2011-04-01 CEST" I get:
"Time difference of 30 days"
an thats fine.
But when I try "2011-05-01 CEST" - 30 I get nonsense.
So how can I subtract some days, month or years from a date?
thanking you in anticipation
Claudia Paladini