@imad
since your problem is solved, please mark the thread as resolved!
Edit: You did that already, Thanks!
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can you tell me please, how i can change the time in chart.
the time in chart and Response Body (1563120000000) it is difference
On REST the time is given in millisecs since some data 1970 or so. The chart does give it human readable. When choosing longer times you will see day-names and dates. That is done automatically for the built-in charts. You canât change them.
If you need more control over the chart you have to switch to Grafana (more powerfully, more config needed, takes resources from the systemâŠ)
thank you 
Hi, I just observed exactly the same problem on my system. It turned out that the package âfontconfigâ was missing in my OpenHABian 2.4.0-1. After installing it (âapt-get install fontconfigâ) chart generation worked fine. That also expains why installing influxDB + grafana package helps: it installs as dependency also the fontconfig package.
Your hint
âlog:set DEBUG org.eclipse.smarthome.ui.internal.chartâ
put me on the right track.
Thanks!!
For reference here my system data:
Release = Raspbian GNU/Linux 9 (stretch)
Kernel = Linux 4.19.57-v7+
Platform = Raspberry Pi 2 Model B Rev 1.1
openHAB 2.4.0-1 (Release Build)
openjdk version â1.8.0_212â
OpenJDK Runtime Environment (Zulu8.38.0.163-CA-linux_aarch32hf) (build 1.8.0_212-b163)
OpenJDK Client VM (Zulu8.38.0.163-CA-linux_aarch32hf) (build 25.212-b163, mixed mode, Evaluation)
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That looks like a good find !
Out of curiosity, is there a quick check for this package? I could not see it in my OH 2.4 bundle:list (that does plots charts from rrd4j just fine)
Humm, poking for that info came across this
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Good catch!
Now the Questions are:
Are all users, that observe(d) this issue, on a openhabian Installation?
From when was this installaton? Maybe initially from befrore Febâ17?
I used the latest release 1.4.1 from
which is from April 2018.
solution :
sudo /etc/init.d/ntp stop
sudo ntpd -q -g
sudo /etc/init.d/ntp start