[QGIS-Developer] How to get animation_datetime()

[Andreas Neumann]

Hi,

In an animation (QGIS 3.14) - how do I get the current time of an animation?

In https://www.youtube.com/watch?v=8R0TQlhdc1U&feature=youtu.be at 
minute 6:26, it shows a formula involving the "animation_datetime()" 
function.

But my expression editor complains, that this function is not available.

Thanks for your hints,

Andreas