Burning fat has little to do with time, but depends on the intensity of exercise. The intensity of exercise here is also the speed of running. Moderate intensity exercise is mainly calculated according to heart rate. When running at low speed, the body will burn fat, and when running at high speed, it will burn sugar. So running too fast won't help you lose weight. Therefore, the intensity of running should be controlled well, and it can last for more than 30 minutes to achieve the function of burning fat.
If you want to lose weight by running, you should make a plan for yourself. At least before and after running, there should be no less finishing exercises, lasting 5- 10 minutes each time. Don't start or stop immediately. Stretching exercises, on the one hand, can warm up first to prevent physical injury, on the other hand, you can consume some sugar first, and then the fat burning rate will be greatly improved. ?
Running also needs to find the best time. Some people like running in the morning, but others like interesting running. In fact, the most suitable running time has nothing to do with morning and evening, but with whether you are full or not. Running can't be on an empty stomach or full. An empty stomach will make you tired, and you will be panting after running a few steps, while satiety will concentrate your blood and digestive tract, and strenuous exercise is not good for your health. So it's best to eat a banana or drink some functional drinks on an empty stomach.
It should be half an hour before you can really burn fat to lose weight. Don't jog too fast, it's good for your health. I hope I can help you and wish you a happy day.