The change in Earth’s “time days” is a very interesting and rare natural phenomenon
The change in Earth’s “time days” is a very interesting and rare natural phenomenon that scientists have recently released information about.
What does the change in “time days” mean?
Basically, one day = 24 hours. However, in July 2025, scientists noticed that some days were actually a fraction of 24 hours — a millisecond shorter.
Why is this happening?
This change is caused by small changes in the Earth’s rotation. The Earth does not rotate completely at the same time — the speed of rotation can increase or decrease due to various factors:
Movements of the core and mantle
Earthquakes and volcanic activity
Global melting (loss of ice at the poles)
Changes in wind and atmospheric pressure
In 2025, scientists have determined that July 9 and 22, as well as August 5, will be days when the Earth rotates slightly faster, meaning that each day will be milliseconds shorter than 24 hours.
What could be the result?
Global time synchronization (GPS, satellite systems, and Internet infrastructure) is highly dependent on these changes.
It may be necessary to add or remove so-called “leap seconds.”
For example, if the time change accumulates, in 2029 we could get a negative leap second — that is, we will lose a second from the hour (which has never happened before in history).
According to scientists:
This anomaly does not mean any danger, but it clearly shows how variable the rhythm of nature is and how precise observation is needed in the modern technological world.
