From my series Chronoception about the perception of time. One of the most fascinating things I find about Time is the inability to measure 2 intervals by putting one at the side of the other. Historically, cultures for more than 4000 thousand years have tried to measure time through the position of the sun or the stars among other methods that have helped to order the patters of our lives. This piece addresses a number of issues around this approach to Time: day night cycles, seasons, physical clocks and time streams. This is a dynamic NFT that switches from day mode to night mode. It works as a “clock” and can be used as an indicator of the time in the day we are living at. It has been developed combining a series of techniques: stop motion, high speed photography that freezes a very small fragment (1/10,000 sec) and focus stacking (to trick scale and depth of field). The final result is a 35 sec seamlessly looping video.