Time series chart - time problem

I would like to get the "time" in the dataset from an expression but it leads to an component error? When I write the exact same date with no binding it works. Is this expected behaviour?

Remove the transform on the expession? Ignition will recognise the returned data as a datetime type. (You'll see a little calander icon beside the returned value in props.series.0.data.0.time.

Thanks I tried that before but didn't work. It worked now but I had to activate the preview for it to work, thanks!