Epoch Time subtraction

[JHScen]

So in my function node,

msg.payload = msg.payload - msg.payload;
return msg;

Is that correct? As with that I'm just getting 0, when it should be 3500

[Steve-Mcl]

@JHScen

So in my function node,

msg.payload = msg.payload - msg.payload;
return msg;

Is that correct?

no, that would never work.

Imagine msg.payload equalled 123. Then 123 - 123 is always 0

Show me the output of the join node. AND/OR share your flow as previously asked

@Steve-Mcl

Share your flow if you are are still stuck & show us the value that comes from both legs of the flow before the join node (use debug nodes and screenshot the 2 output values)

[JHScen]

All makes sense. It wasn't working due to the fact that I had a split node included too - therefore the payload message wasn't getting through from both sides.

Removing the split node and copying the path from the join node and placing them in the function allowed me to do the subtraction.

Thanks so much for taking the time Steve.

Best wishes

[Steve-Mcl]

@JHScen

Thanks so much for taking the time Steve.

No bother.

Please mark the answer that best suits your solution (even if that is your post)