The reason lies in the rotation of the earth. A day corresponds to a complete rotation of the earth on itself, 24 hours. But this duration is influenced by other elements. First, the position of the moon. On Tuesdays July 22 and on August 5, this star will be in its position furthest from the equator, which will modify its gravitational impact compared to the earth, thus accelerating its rotation.
An acceleration of the rotation of the land linked to various factors
But do not worry: this discrepancy will not be perceptible on a human scale since its advancement is played in millisecond (1.38 for July 22, and 1.51 for August 5). Or shorter than a blinking of the eyes. At the technological level, it could be felt on GPS navigation, IT networks or financial systems. But this phenomenon is not new. In 2024, the shortest day was faster by 1.66 millisecond.
An acceleration which would not only be linked to the positioning of the moon. The melting of ice or the various earthquakes would influence just as much. According to the specialist in terrestrial rotation at Moscow State University, Leonid Zotov, in Timeanddate “‘This is an internal phenomenon of the earth because the ocean and atmospheric models do not explain this considerable acceleration. A variation followed closely by the experts, since according to their words, the earth will eventually decelerate.