Getting various date/time from now()

🚧 Developers Coding Questions
1

I'm looking to add some time of day checks to my custom app, but am not sure the easiest way to pull out hour for example from now()

I was looking at The Apache Groovy programming language - Blogs - Groovy Dates And Times Cheat Sheet

I tried

  • now().hour
  • now().properties
  • now[HOUR_OF_DAY]

Nothing worked. I want to do something like:

def triggerAlarm() {
  if (avoidNightAlerts == true) {
    if (now().hour > 20 || now().hour < 7) {
      return
    }
  } 
  
  if (state.alarmTriggerTimestamp > 0) {
    state.alarmTriggerTimestamp = 0
    send(alertMessage)
  } 
}
2

Did you try?
LocalTime.now().hour

3

I usually go with SimpleDateFormat (Java Platform SE 8 )

2 Likes
4

I was also trying to do this and found stuff online about using the Calendar class instead. In this example I am getting the current date/time, subtracting a minute and then extracting the hour and minute to be used with scheduling a recurring task.

void scheduleSomething() {
	def cal = Calendar.getInstance()
	cal.add(Calendar.MINUTE, -1)
	Integer hour = cal[Calendar.HOUR_OF_DAY]
	Integer minute = cal[Calendar.MINUTE]
	schedule( "0 ${minute} ${hour} * * ?", scheduledFunction)
}
2 Likes
5

Thanks all for the ideas and resources!

This one worked really easy for me. I'm assuming its 24 hour time format for the hours. Will see in a few hours. :slight_smile:

2 Likes
6

here is another way

def now = new Date().format('MM/dd/yyyy h:mm a', location.timeZone)

sendEvent(name: "lastUpdate", value: now, descriptionText: "Last Update: $now")