Time management is all about efficacity!
What time of the day (or night!) is best for you? If you work better in the afternoon, plan to do important things such as crucial meetings when you're at your best.
This way, you won't waste time and you'll be able to achieve more with the time you have. 60% of women say they have too much to do, but if you actually sit back, take an objective look at things and organize your time to your advantage, you'll be far less stressed out.
The key: Knowing when you're at your best.