Some factors that go into this equation:

Universal Time (UT) is 01:00:13, Wednesday, 12/31/2025.
(That’s 1.02027777777778 in decimal hours.)
The Julian date is 2461041.3409478.
The sun’s ecliptic longitude is 279.620521617479 degrees.
Its mean anomaly is -3.046128452 degrees.
The moon’s mean longitude is 318.351648 degrees.