What is more effort on mobile?: two taps or one drag

Hey Guys,

I am creating wireframes for a time tracking app that I am making.

I have a PoC that I use personally and initially thought a drag and drop interface for timesheets (drag time to pot) would be the least amount of effort, but during wire-framing I don't know if this is the case.

I am trying to be focused on the user and hence have minimal resistance.

What are your preferences?