What the mysterious shortening of the day by 1.6 ms could mean?

I encountered an interesting posting in the Deep in Space group. I also found a popular article about the effect (this). There are many effects causing variation of the length of the day but this particular finding has not found any convincing explanation in terms of the known physics.

Here is the copy of the posting of the Deep in Space group:

On multiple days this summer including July 22 and August 5 Earth spun faster than usual, making the day shorter by up to 1.6 milliseconds. Even July 11 was confirmed by atomic clocks as the shortest day of 2025 so far. This isn t just a one-off quirk. The unusual speed-up was first noticed in 2020 and has continued into 2025, baffling researchers. While our planet’s rotation naturally wobbles and shifts, this sustained acceleration is unprecedented.

Scientists have theories: shifting ocean currents, atmospheric patterns, movements in Earth’s molten core, even the Moon’s changing position relative to the equator. But here’s the twist: none of these fully explain what’s happening.

Nobody expected this, says Leonid Zotov of Moscow State University. And that is the unsettling part: we don’t know why our days are shrinking. Could it be a natural cycle we don t yet understand? Or is there something deeper, hidden in the rhythms of our planet? For now, the mystery continues and the clock is quite literally ticking faster.

The finding of a standard physics based model for the finding has turned out to be very difficult. There are two basic options according to whether there is external angular momentum feed or not.

Standard explanations fail

There is no convicing standard physics explanation for the shortening of the day. As an example, one can consider one particular attempt, which starts from natural question whether angular momentum conservation and perhaps even energy conservation could be used to model the effect. One can perform a quantitative estimate demonstrating that this is not possible.

1. Assume that the rotation velocity of an object, which is some part of the Earth, most naturally the entire Earth, increases. Also outer core, inner core, or innermost core can be considered.

Idealize the rotating object as a solid ball with radius R, having a constant density ρ, which in the first approximation is the average density of Earth. The mass is M(R)= (4pi/3) ρ R³ and the moment of inertia is I=xMR², x= 2/5 .

If the rotating object is liquid (outer core is liquid), its inertial momentum is smaller due to the varying velocity field of the liquid. Suppose this gives a correction factor y so that one has

I= yxMR², x=2/5 .

Assume angular momentum conservation in the transition in which the rotation frequency changes. The Earth would be like a skater contracting itself so that its momentum of inertia would be reduced. For a spherical solid body with constant density, the angular momentum is

L= Iω = yxMR²ω .

The conservation condition gives

Δ R/R= -1/2 × (Δ ω/ω) .

Δ ω/ω is from Δ T= 1.6 ms given by Δ ω/ω ∼ 3.1 × 10^-8. At the surface of the Earth this would give an unrealistically large value of ΔR∼.09 m. This alone excludes the assumption that angular momentum is conserved.

Obviously a model, which assumes also energy conservation is doomed to fail. Could external momentum feed from the gravitational body of the Earth and Sun explain the shortening of the day?

It seems that external angular momentum feed must be assumed. It also seems that new physics might be involved.

1. The notion of gravitational magnetic/field body represents new astrophysics predicted by the TGD based view of space-time as a 4-surface in H=M⁴× CP₂ (see this and this).
2. Holography = holomorphy principle (H-H) is an essential part of TGD (see this, this and this) and forces the introduction of what I call zero energy ontology (ZEO) (see this and this). This means that the space-time surface, analogous to Bohr orbit, replaces 3-surface as a fundamental object. This surface turns out to be a minimal surface except at singularities and is slightly non-deterministic as also 2-D minimal surfaces for which a given frame allows several minimal surfaces. This non-determinism forces ZEO, which solves the basic problem of quantum measurement theory.
3. Number theoretical vision predicts a hierarchy of effective Planck constants (see this), involving gravitational and also electric Planck constants (see this and this) assignable to long range classical fields. This predits quantum coherence in astrophysical scales and predicts a large number of numerical miracles in astrophysical scales.

Could one identify the shortening of the day as a quantum transition involving an angular momentum transfer from the gravitational magnetic body of the Sun-Earth system to the Earth where it becomes classical angular momentum?

1. The gravitational Planck constant ℏ_gr introduced originally by Nottale (see this), characterizes the magnetic body of the Sun-Earth system (see this). ℏ_gr is given by

ℏ_gr= GM_SM_E/β₀, β₀∼ 2^-11 .

Here the solar mass is given by M_S= .333× 10⁶M_E. This result follows from the Bohr orbit model of the planetary orbits introduced by Nottale.

The minimal feed of the angular momentum would be ℏ_gr and classically corresponds to Δ L=x M_E R²Δ ω, x= 2/5.

Assume that the transferred angular momentum becomes classical angular momentum of the Earth. In the general case the increase of the angular momentum for the Earth is quantized and given by

Δ L = IΔ ω =(2/5M_E R²Δ ω= nℏ_gr= n(GM_SM_E/β₀ .

Here n is an integer. This gives the condition

(2/5) (R_E/cT_s= (GM_S/β₀)= n(r_S(Sun)/R_E)/2β₀ .

The numbers are as follows: T_s= 1.6 ms; r_s(Sun)= 3 km; r_S(Sun)=3× 10³ m; R_E= 6.3734× 10⁶ m; r_s(Sun)/R_E= .471× 10^-3. This gives R_E/cT_s = 13.279. The left-hand side and the right-hand side of the equation have values 5.31 and .471n respectively so that equation is satisfied for n=11.27 ∼ 11. The transition with ΔL= 11 ℏ_gr would give a reasonable result. It would seem that the effect could serve as a direct evidence for the notion of gravitational magnetic body and the notion of gravitational Planck constant. The quantization of the effect gives hope of testing of the model.

For a summary of earlier postings see Latest progress in TGD.

For the lists of articles (most of them published in journals founded by Huping Hu) and books about TGD see this.

Source: https://matpitka.blogspot.com/2025/08/what-mysterious-shortening-of-day-by-16.html