This article is for effective fat burning only and not for sport training.
As soon as you wake up in the morning workout for at least 30 minutes to an hour. Studies show that working out in the morning has been shown to burn up to 3 x more fat as opposed to workingout at any other time during the day. Here's why:
During the day your body's main source of energy is the carbohydrates that you get from eating your meals. As you sleep at night for 6+ hours your body uses up all those carbohydrates for various bodily functions that go on even while you sleep. When you wake up in the morning your body doesn't have carbohydrates as energy to use and it will look to burn body fat instead for energy.
For you to take advantage of this morning fat burning opportunity you have to exercise first thing in the morning. Don't eat breakfast because if you do you'll just give your body carbohydrates as a source of energy instead of the body fat that you want to burn for energy. However once you have completed your workout it would be good practice to eat some complex carbohydrates such as weetabix, try to do this within 45 minutes of finishing your workout. This will feed your muscles and prevent them from burning away with the fat.