I was lifting weights from 4am-5am and doing cardio in the afternoon after work.
I have now been lifting at night and doing cardio at night8pm-10pm.
Now I am not losing weight as fast as I was.
I know calories expended should be the same and in theory weight loss should be the same. I have however found on 3 different ocassions that this is not the case for me.
If I lift in the morning and do cardio in the morning I lose far more weight than if all workouts are done in the evening.
No diet changes, no changes in workout. ONly changing the time of day the workouts are done.
I did the changes for 2 months at a time. I notice a good 1.5 pounds a week loss between the 2 workout times. The only reason I changed it up is so it doesn't get so borring.

Interesting. I'm no expert, but I believe not changing the workout might be causing some of the reduced weight loss. Doing the same workout repeatedly without increasing intensity leads to the workout being less effective over time. Or so I've heard.

Or maybe your body is just more efficient in the morning. Are you a morning person?

I wake up at 4 am every morning. I go to bed at 11pm every night. I guess I am a morning and night person.

Are your morning workouts done before or after breakfast? I saw something recently that if one's goal is weight loss it is best to exercise on an empty stomach and then eat breakfast.

I disagree with this. Your body needs some fuel for its workout. Even if it is a small meal (300 cals consisting of a majority protein, followed by a carb, lastly by fat percentages) it gives you the energy you need after "fasting" (i.e. sleeping) for eight hours.

If one's goal is weight loss, one needs to eat properly, reduce only 10-15% below maintenance, and exercize moderately throughout the week. Changing your exercize routine also helps, as does not reducing your calories too low.