How long does it take to make a bow?

It depends on what you mean by "bow".

• To take a bow, as at the end of a play, only takes a few seconds.
• To make a bow, like a bowtie, takes a few hours to sew and a few minutes to tie.
• To make a bow, like on a wrapped gift, takes a few minutes, too.
• And to make the bow of a ship, would generally take weeks to months. Maybe less if it were only a model or small scale toy.