Hi, I´m using the “DateTime” item here is an sample link
Switch DEV_01 "Device1 - Status" (PresenceDev, PresenceDetails)
DateTime PRAESENZ_01 "Device1 last detection [%1$tA, %1$td.%1$tm.%1$tY %1$tT]" <calendar> (PresenceDetails)
This is updated by a rule:
import org.openhab.core.library.types.*
import java.util.Calendar
import java.util.Date
import java.util.TimeZone
rule "Device1 - Presence Detected"
when
Item DEV_01 changed to ON
then
var local_time = java::util::Calendar::getInstance(TimeZone::getTimeZone("Europe/Berlin"))
postUpdate(PRAESENZ_01, new DateTimeType(local_time))
end
Its working fine. When I click on my switch seen in my sitemap it updated the field with the date. However after some time the entry is reset to “-, -.-.- -”.
Is that normal? Shouldn´t the last time be persistent here?