Editing Time (section)

=== Quantization ===
{{See also|Chronon}}

Time quantization refers to the theory that time has a smallest possible unit. Time quantization is a hypothetical concept. In the modern established physical theories like the [[Standard Model]] of particle physics and [[general relativity]] time is not quantized. [[Planck time]] (~ 5.4 × 10<sup>−44</sup> seconds) is the unit of time in the system of [[natural units]] known as [[Planck units]]. Current established physical theories are believed to fail at this time scale, and many physicists expect that the Planck time might be the smallest unit of time that could ever be measured, even in principle. Though tentative physical theories that attempt to describe phenomena at this scale exist; an example is [[loop quantum gravity]]. Loop quantum gravity suggests that time is quantized; if gravity is quantized, spacetime is also quantized.<ref>{{Cite web |last=Lewton |first=Thomas |date=2023-07-10 |title=The Physicist Who Bets That Gravity Can't Be Quantized |url=https://www.quantamagazine.org/the-physicist-who-bets-that-gravity-cant-be-quantized-20230710/ |access-date=2025-03-02 |website=Quanta Magazine |language=en |archive-date=13 February 2025 |archive-url=https://web.archive.org/web/20250213110413/https://www.quantamagazine.org/the-physicist-who-bets-that-gravity-cant-be-quantized-20230710/ |url-status=live }}</ref>