It's his actual timezone - EST (Concord, Massachusetts). >The first thing one sees from this plot is that, yes, I’ve been busy. And for more than 20 years, I’v

It's his actual timezone - EST (Concord, Massachusetts). >The first thing one sees from this plot is that, yes, I’ve been busy. And for more than 20 years, I’ve been sending emails throughout my waking day, albeit with a little dip around dinner time. The big gap each day comes from when I was asleep. And for the last decade, the plot shows I’ve been pretty consistent, going to sleep around 3am ET, and getting up around 11am (yes, I’m something of a night owl). (The stripe in summer 2009 is a trip to Europe.) https://blog.stephenwolfram.com/2012/03/the-personal-analytics-of-my-life https://blog.stephenwolfram.com/2012/03/the-personal-analyti...