2Matoe Julian Reduction Engine

 This widget displays the astronomical Julian Day Number (JDN). The JDN begins at 12:00 UTC, which may cause the value to differ from Day‑Of‑Year (DOY) counters commonly shown by search engines and commercial date converters. 

 This is the true Julian system used by NASA, observatories, and scientific datasets.

• It starts at noon UTC, so it will always “lag” behind the calendar day until 12:00 UTC.
• This  app currently uses this system.