the reason that more fat is burned in the morning,, is because there is no glucogen in the muscles after sleeping, so your body burns fat for energy immediately, it takes approx 20 minutes of cardio to burn the glucogen stores anytime of the day,,, calculate your fat burning zone,, and do your warm up,, 20 minutes in the zone to burn your stored glucogen, and an extra minimum of 20 more minutes.. and you'll be in the same position.