OH3, Error 'millis' is not a member of 'java.time.ZonedDateTime'

[Hansohm]

Running on a RasPI 4 with openHABian and openHAB 3.0.0 (upgraded from 2.5.11-1)

Log shows:
[ERROR] [internal.handler.ScriptActionHandler] - Script execution of rule with UID ‘natur-7’ failed: ‘millis’ is not a member of ‘java.time.ZonedDateTime’

The corresponding line in my rule file is:
val timeSinceLast = now.millis - VMaxWindKurz.lastUpdate("mapdb").millis


I read the topic DateTime Conversion (openHAB 3.x) and understood that now JAVA Time is used instead of former Jodatime but unfortunately that didn’t help me further

[rossko57]

@Hansohm

‘millis’ is not a member of ‘java.time.ZonedDateTime’

Assuming you want in local time, Google suggests
now.toInstant().toEpochMilli()

[Hansohm]

@rossko57

now.toInstant().toEpochMilli()

Thanks… According to the generated graph my corrected code
val timeSinceLast = now.toInstant().toEpochMilli() - VMaxWindKurz.lastUpdate(“mapdb”).toInstant().toEpochMilli()
is working.

But I ran at once into the next time problem with the expression now.withTimeAtStartOfDay in:
val Number tKorrMax = (Temp_Aussen_Korrigiert.maximumSince(now.withTimeAtStartOfDay).state as DecimalType)
and resulting error
‘withTimeAtStartOfDay’ is not a member of ‘java.time.ZonedDateTime’

So do you have a hint for that and for further problems a hint for a website where the JAVA time “now” and all the other stuff like withTimeAtStartOfDay is listed? Because the pages I found didn´t help me in a “usable” mannor…

[Wolfgang_S]

@Hansohm

‘withTimeAtStartOfDay’ is not a member of ‘java.time.ZonedDateTime’

see OH3: can I/we already ask questions WRT OH3 - #4 by rlkoshak

[wborn (Wouter Born)]

See also:

DateTime conversion from item in OpenHab3

You can calculate a Duration from the ZDTs like this: val start = new DateTime((PowerMeter_Meter3_totalkWh.lastUpdate as DateTimeType).zonedDateTime val end = PowerMeter_Meter3_totalkWh.previousState(true,"influxdb").timestamp if (Duration.between(start, end).toMillis() > 0) { consumption3 = actualconsumption3 - previousconsumption3 } else { consumption3 = 0 } You probably also need to add an import for the Duration: import java.time.Duration

DateTime Conversion (openHAB 2.x)

There is an easier way to do this. If you have a ZonedDateTime you can easily update the time using one of the LocalTime constants: ZonedDateTime.now().with(LocalTime.MAX) ZonedDateTime.now().with(LocalTime.MIDNIGHT) ZonedDateTime.now().with(LocalTime.MIN) ZonedDateTime.now().with(LocalTime.NOON) You can already replace Joda-Time in your OH 2.5 rules today with java.time. That’s how I did it and have no issues with time when using the same rules in OH 3.