Earth's deep secret: Why your day isn't quite 24 hours

Written and edited by the WorldPing NewsdeskPublished Updated Original reporting: Phys.org
Earth's deep secret: Why your day isn't quite 24 hoursWorldPing
Image via Phys.org.

What happened

You might think the length of a day never varies—exactly 24 hours.

You'd be wrong, at least if you count days in milliseconds, as physicists do.

Key facts

  • You might think the length of a day never varies—exactly 24 hours.
  • Reported by Phys.org and published Thu, 24 Sep 2026 16:00:11 UTC.

Why it matters

Research findings and mission results set the evidence base that policy, funding and later discoveries build on.

What to watch next

  • Peer review status and replication of the findings
  • Mission milestones and next scheduled attempt
  • Funding or policy decisions that follow

Sources

The original report was published by Phys.org. WorldPing does not claim that reporting — this page summarises and contextualises it.

Read the full report at Phys.org

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