$RRDTOOL update $RRD 1167487200:0 1167494400:720 1167501600:1440 1167508800:2160 1167516000:2880 1167523200:3600 1167530400:4320 1167537600:5040 1167544800:5760 1167552000:6480 1167559200:7200 1167566400:7920 1167573600:8640 1167580800:9360 1167588000:10080 1167595200:10800 1167602400:11520 1167609600:12240 1167616800:12960
report "update"
-$RRDTOOL xport \
+LC_TIME=C TZ=Europe/Zurich $RRDTOOL xport \
--json \
--start 1167487200 --end 1167616800 \
DEF:myspeed=$RRD:speed:AVERAGE \