How many hours a day should you sing?
For most people, a minimum of thirty minutes every day is a good start. However, there is a thing as practicing too much, and you should always stop practicing if you feel a strain on your vocal cords. If you take breaks throughout the day, it will allow you to build the vocal stamina needed to practice more every day.
How many hours does it take to sing?
Some of you may have heard of the 10,000 hour rule, where they say it takes 10,000 hours to become an expert in anything. With 2 hours of practising every day, it would take you 5,000 days (13.69 years) to achieve expert status.