Everyone works out to look and feel better right? Otherwise, what's the point? So, are you sure you're getting the maximum results from your training session?
Are you working out when your energy is highest, or just when it's convenient to your schedule?
I understand that scheduling can be a bit of a problem in today's world, but if you aren't working out when your personal energy is jumpin' then you may not be getting the maximum benefit from your training routine.
I know a lot of people who drag themselves through a workout first thing in the morning (like bright and early before the sun rises almost). However, these people aren't morning people and they're literally forcing themselves because they feel like they just want to get it over with, off their mind and get on with their day. But their energy is low because it's just not their most energetic time of day. These same people feel a surge of energy at the end of their workday but since their workout is already done, don't bother to take advantage of this surge.
There are many people for whom the complete opposite is true. They have barrels of energy first thing in the morning but feel that the time they have to spare only exists at the end of the workday, at their lunch hour or later in the evening.
Many people feel a huge drain of energy once the sun goes down so trying to work out in the evening in the dark (even in a lit room) can be very difficult. If they'd only worked out when their personal energy level was high, upon waking, they might have found that they can pour a lot more into their efforts and get a much better workout as a result.
I even have one friend that prefers to do her training session at midnight. Sure, she sleeps til 10am, but her energy just isn't there until much later in the evening. So she works out right before bed because that's when she can get her BEST workout done. Be careful with this tactic though, because many people find that a really late workout ramps them up too much to get to sleep afterward.
Personally, I'm not a morning person, but I also find that a workout before the workday starts gets me a good hard energetic training session and also gets me ramped up for a great workday with my brain firing on all cylinders.
So, I sleep a little later, work out mid-morning, and my workday is officially from about 1pm until about 9 or 10pm.
Sure, I've got the luxury of being able to schedule my workday around when my personal energy levels are optimized. I realize not everyone is able to do that. Some people hold jobs that expect them to be there from 9am until 5pm (or whatever shift work might be dictated).
To those people I can only suggest to keep an eye on when your personal energy levels are at their highest, and then adjust your personal schedules around your workday so that you can get your workout in when you can optimize for the most energetic workout possible.
Either. Or get it done after work, if that's when you're feeling the most energy.
If you're a morning person who's been working out at the end of your workday, get up a little earlier so you can get it done before you head to work. If you're an evening person who's been dragging your butt through your workouts first thing in the morning, sleep later, go to work and head to your workout afterwards or later in the evening. It's ok if you stay up a little later, because now you're sleeping later. Right?
Make sure your workout is the best possible by scheduling your time to 'sweat' for when you personally have the most energy, not when some textbook says is the best time. That will ensure you get the most energized workout possible.