is the best time. keep in mind that you have to let the ink to dry up completely. if the ink does not dry properly, then your box will not look good at all.
you need to fold the two corners devoid of making cuts into the center. you have to apply glue to make the folding strong. when the glue on this fold dries up then move to the other.
start folding the edges as this will make the two sides of your gift box.
when you get two sides beautifully then you have to fold the cut ends at one end of your box.
now we are going to finish the last 