How to show dynamically time on a dragged event?

[butterfly-valley]

Loving the lib but can't update the title when dragging an event. I would like to dynamically show inside the dragged event current time as the user drags in on the body and currently renderDraggingEvent callback does not seem to have access to what time the event is dragged through although we can see it on the left hour column but it is a bit non-obvious. Thanks in advance for your tips.