Maximilian Renner (4 November 1919 – 20 March 1990) was a German zoologist and chronobiologist. He worked as a researcher and professor at the Ludwig Maximilian University of Munich focusing on "Zeitsinn," or time sense, in bees.[1] His biggest contribution to chronobiology was an experiment in which he explored the concept of “Zeitgedächtnis,” or time memory, by flying bees to different time zones and examining their activity. He continued his research efforts and made various publications on the topic of bee physiology and behavior.