How to Add time to input_datetime

[EcarDK]

Hallo all

How do I add one extra hour, in node-red, to an input input_datetime.time.

If I set the time on the dashborad to like 20:00, and I need node-red to add one extra hour?

I need it to create a control where I can set a bedtime. I want to be able to set the bedtime on the dashboard, and then Node-RED should turn off some of the lights an hour later.

Thx alot all
Peter

[zenofmud]

Maybe node-red-contrib-mytimeout could help. Take a look at it. I don't know how it will work with Home Assistant because I (and most people on the forum) don't use it

[EcarDK]

Hey Zenofmud
Thx for the replay.

That was a good idea, but not exactly what I needed. If 20:00:00 is input, then I need the value to be 21:00:00.

I'm not proficient in function nodes, but perhaps there's an easy way to do it with function nodes.

[jbudd]

Assuming that your system sends a message of some sort at bedtime, you could use a delay or trigger node without any time arithmetic. I think you would need to set msg.delay to 3600000 (1hr in milliseconds).

Does input_datetime come from Home Assistant? What format is it? An example would be useful.

[zenofmud]

With my timeout you can specify the timeout in seconds and when it reaches that it sends out a message. I use it for my coffee pot timer. I can turn on the pot and 20 minutes later the pot is turned off.
You can take a look at Coffee Pot Timer