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Since, as I've written before (http://paulgraham.com/makersschedule.html …) the mere possibility of being interrupted makes one less productive, an hour at night feels more valuable to me than one in the morning.
If you're on a roll late at night, you can keep working. The price will be that you feel tired the next day, but you can choose to pay it. But if you're on a roll in the morning and your kids wake up, or people start to call you, you're stopping whether you want to or not.
Interested to hear how parents have managed to pull off bits of this while also fitting it in with their family life.
I wonder if there are complimentary ways to go about. 
Maybe wishful thinking
Lifestyle is huge in going late or rising early
You can be both. During the summer, I usually go to bed after 1 AM and often wake up at 6 AM or earlier. At least one day a week, though, I must sleep till very late.
When you are coding something hard/important, it is similar to making a surgery.
So true!
Could you hazard a guess as to what % the top 100 entrepreneurs that you know would be? % early birds vs night owls?
https://www.hup.harvard.edu/catalog.php?isbn=9780674065857 … Just going to keep referencing this book till folks stop talking about sleep cycles instead of chronotypes
so true and this is why I love nights and work in them! night owls all the way ;)
Managers who are better at multi-tasking tend to be morning people. Creatives and experts who are better at deep single-focusing tend to be night people. Watch out for managers who are night people, like Stalin, Hitler, and the newly de-Googled Churchill. They can be a handful.
That true? Many famous writers were doggedly morning people
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