Why One Critical Second Can Wreak Havoc On The Internet

Arthur T Knackerbracket has processed the following story:

Google, Microsoft, Meta and Amazon launched a public effort Monday to scrap the leap second, an occasional extra tick that keeps clocks in sync with the Earth's actual rotation. US and French timekeeping authorities concur.

Since 1972, the world's timekeeping authorities have added a leap second 27 times to the global clock known as the International Atomic Time (TAI). Instead of 23:59:59 changing to 0:0:0 at midnight, an extra 23:59:60 is tucked in. That causes a lot of indigestion for computers, which rely on a network of precise timekeeping servers to schedule events and to record the exact sequence of activities like adding data to a database.

The temporal tweak causes more problems -- like internet outages -- than benefits, they say. And dealing with leap seconds ultimately is futile, the group argues, since the Earth's rotational speed hasn't actually changed much historically.

"We are predicting that if we just stick to the TAI without leap second observation, we should be good for at least 2,000 years," research scientist Ahmad Byagowi of Facebook parent company Meta said via email. "Perhaps at that point we might need to consider a correction."

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