From: gregor herrmann <gregor@toastfreeware.priv.at>
Date: Thu, 14 Jun 2018 22:12:41 +0000 (+0200)
Subject: format x tick values (datetime) differently according to interval
X-Git-Url: https://git.toastfreeware.priv.at/chrisu/seepark.git/commitdiff_plain/8e2b15c9ed5f03146cd999593b4d8515fde79858?hp=8e2b15c9ed5f03146cd999593b4d8515fde79858

format x tick values (datetime) differently according to interval

format strings picked a bit randomly for now, following the temperature
charts at https://info.comodo.priv.at/webcam/

might make more sense and fun with real values …
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