Adding two text-format time values

Please excuse me if this is obvious, but I have been going round in circles trying to find the solution.

I want to be able to enter two time values as text (e.g. 15:17) and add them (start time + duration = stop time). Entering the two text values as variables via the Advanced flow “ask” function works well, but then I don’t know how to combine them. Normal {{}} notation arithmetic does not work. Do I need to convert them to another format first?

Any help would be much appreciated.

As far as I know this is not possible with a default flow card in Homey.

You could make an Homey script that does the math for you, or perhaps the app Better Logic Library could help you, but I don’t have any experience with that app.

But I do find this an interesting case, so I’m wondering if someone else has an other/better idea to solve this problem!

Bob Thanks Justin,. That’s more or less what I expected. I’ll dive into BLL. Bob

Hoi Bobha,

Hier wat voorbeelden. Tik op de eerste link om de hele post met flow screenshots te kunnen zien:

If you could please keep the conversation in one language in the topic, then more people will be able to participate and help you. Please translate your post into English, otherwise it will be deleted in three days to keep the thread in just one language as stated in the forum rules Welcome to the forum!

Sorry, missed that. Now translated.