Scheduled CRON Rule timezone seems to be GMT not local

Setup, Configuration and Use Beginners
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  • Platform information: Debuan Buster (on Qnap container station)
    • Hardware: intel/4GB/Terabytes of storage
    • OS: what OS is used and which version
    • Java Runtime Environment: 11
    • openHAB version:3.0.1

Vanilla setup - oh3 has been working for a long time, but never used schedules, so I created one. Then looked at the schedule UI and it showed nothing was going to run today at 8am, but it would tomorrow and it was currently 6am.

I am east coast - GMT - 4 right now, so fiddling with rule trigger time I set it to 4 hours ahead of local time, - and presto it shows up as going to run today.

The OS time is local and correct. Anything to check as to why OH3 is not using local time?

triggers:
  - id: "1"
    configuration:
      cronExpression: 0 25 8 ? * MON,TUE,WED,THU,FRI *
    type: timer.GenericCronTrigger
conditions: []
actions:
  - inputs: {}
    id: "2"
    configuration:
      itemName: KidsDesk_Power1_i
      command: ON
    type: core.ItemCommandAction
2

See

3

Thanks rossko57 ! that’s got me in the right direction - been fiddling with the config file - but after reading a bit more maybe I have the wrong config file?

Using: /etc/default/openhab (that’s a file not a folder)
EXTRA_JAVA_OPTS="-Duser.timezone=America/New_York"

Restarted - no effect.

Is there another config file within OH3 on Debian?

4

Try changing custom.system.properties add there karaf.override.user.timezone=x.
Issue is observe comes from basic fact that timezone setting made by openhab is not reflected everywhere for all libraries. Been there. What is your operatong system timezone anyways?

5

trying it out shortly.

TZ on OS from using debian command

timedatectl

is: America/New_York

6

Rebooted linux and the trigger is working at the correct local time (did not try the custom.system.properties adjustment), the EXTRA_JAVA_OPTIONS is in place.
However in the schedule view: URL /#!/settings/schedule doesn’t show it the calendar as “scheduled” today but it does run at the correct local time.

Other days in the week show it in the calendar.

I will upgrade to 3.1.0 and report back in a week or so.

7

Pay attention that openhab stuff uses its own timezone abstraction mechanism which you can override via Settings > Regional.