## Metadata - Author: [[Arthur T. Winfree]] - Full Title: Timing of Biological Clocks - Category: #books ## Highlights - No individual noticeably felt the effects of shifting time zones until about 400 years later, when in 1931 Wiley Post flew eastward around the world in eight days. It turns out that your body cannot adjust to changing time zones much faster than two hours a day, as though your skin can travel at arbitrary speed but your insides are limited to about 100 miles an hour. ([Location 137](https://readwise.io/to_kindle?action=open&asin=B0089VOCOM&location=137)) - If your inaccurate clock could not be reset, then you would have to travel continuously to stay in synchrony with your surroundings (40 miles an hour at the equator, to compensate for the mismatch of an hour a day). ([Location 209](https://readwise.io/to_kindle?action=open&asin=B0089VOCOM&location=209))