How To Build A Hut In Virtual Villagers, How Long Does It Normally Take For An Untrained Villager To Build A Hut?

In Virtual Villagers, how long does it normally take for an untrained villager to build a hut? - how to build a hut

I have my game with 2x speed, try the demo version, so we are only an hour, I wanted to see what remains to be done before it is exhausted.
In real time how long it takes until the construction is completed? 20min?
Check out other villagers theres whos care for a child for the times, how long does it take to grow?
Thanks