There are 1,000 “.beats” in a day on Swatch Internet Time.
Swatch Internet Time divides the mean solar day into 1,000 equal units instead of using hours, minutes and seconds. Each beat lasts 86.4 standard seconds, or 1 minute and 26.4 seconds. The system was introduced by Swatch in 1998 as a decimal alternative to conventional timekeeping.
The daily count begins at midnight in Biel/Bienne, Switzerland, home of Swatch headquarters. Swatch called this reference system Biel Mean Time, or BMT, and designed it to provide one shared time reading worldwide without time zones. Thus, the same beat value could be used in Tokyo, New York or London.
A common mix-up is to answer 24 or 60 because those numbers belong to conventional hours and minutes. Swatch Internet Time instead uses “@” notation: @500 represents the midpoint of the day, while @000 marks its beginning.