Water Street clock at night [via NYC ♥ NYC] It’s a fairly straightforward build, thanks to the use of Adafruit Dotstar multicolour LED strips which are populated with APA102 pixels.

Is your internal clock keeping you awake at night? Delayed sleep phase syndrome may be to blame, and it's more common than you think. Arielle Burton is an associate content manager on CNET's ...

Participants lived in a controlled environment over seven 28-hour sleep/wake cycles where all external time cues—including clocks and natural light—were removed.