The quickest way to bur more calories to lose weight is first thing in the morning before you eat. Just be sure you drink 8 ounces of water when you wake up to get your metabolism going and keep yourself hydrated as you work out. You need to drink as much water as you sweat, do keep your bottle of water handy! It also helps a lot to drink 6-8 8 ounce glasses of water a day; does the body wonders!
In the morning. Because you raising your metabolism throughout the day and if you lifting heavy. You still working your body throughout the day so not only will you burn more calories but also more muscle.