Get and Set time of TimelineEditorWindow / Playhead location

Hello,
please, what is the way to get current time/position of Playhead through api?

I need it for some in-editor manipulation of clips, where context menu (TimelineAction) isn't enough.

I believe that I need to get it from TimelineWindow (implementation of TimelineEditorWindow), and there is "state.editSequence.time". But I didn't see any way how to get it through api (without Reflection tricks).
What it the correct way to get the Playhead position/time?

Is there also way how to set it?

Thanks.