Leap seconds have been implemented 27 times since 1972 to keep our clocks in sync with Earth\u2019s position to the Sun<\/a>.<\/p>\n The practice first became problematic with the emergence of the World Wide Web and satellite communications, with Amazon, Google, Meta and other tech giants campaigning to have the \u201cdevastating\u201d time quirk scrapped.<\/p>\n Scientists claim that replacing leap seconds with a leap hour would be less disruptive and would rarely need to be used.<\/p>\n The leap second has been used 27 times since its introduction 50 years ago (Meta)<\/p>\n The world\u2019s international time system, known as Coordinated Universal Time (UTC), is maintained by ultra-precise atomic clocks, such as those at the National Physical Laboratory in the UK.<\/p>\n Much of today\u2019s infrastructure and technologies, such as smartphones and financial markets, rely on this dependable and consistent way of measuring time.<\/p>\n Applying leap seconds to this system is tricky to implement and can cause significant disruption to telecommunications, global navigation systems and grid synchronisation.<\/p>\n Rather than implementing a leap second every couple of years or so, scientists say that shifting to a leap hour would require an update once every thousand years.<\/p>\n \u201cThe decision taken today reduces the risk to systems that depend on precise and continuous time synchronisation, including national infrastructure that we rely on daily,\u201d said Setnam Shemar, principal scientist at the National Physical Laboratory.<\/p>\n \u201cLeap seconds can be difficult to implement reliably, and if not applied correctly they can cause differences in time across networks, potentially leading to the failure of systems such as mobile phone networks or electricity grids.\u201d<\/p>\n![\"The](\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2026\/10\/8dd12281-3683-48fa-b71c-0ca82fa9147e.jpg\"\/)
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