julianCenturies property

double julianCenturies

The number of Julian centuries of this Instant since the J2000.0 epoch.

Since a Julian year counts exactly 365.25 Julian days, a Julian century counts 36,525.0 Julian days.

The J2000.0 epoch is precisely Julian date 2451545.0 TT (Terrestrial Time), or January 1, 2000, noon TT. This is equivalent to January 1, 2000, 11:59:27.816 TAI or January 1, 2000, 11:58:55.816 UTC.

Implementation

double get julianCenturies => (julianDay - 2451545.0) / 36525.0;