Because the rate at which Earth slows isn’t perfectly predictable from
year to year, leap seconds are announced only 6 months in advance.
That’s a concern for software designers, operators of satellite-based
systems, and anyone else who relies on split-second communications. Six
months isn’t much warning for engineers who operate computer programs
or types of equipment that require precise time information and are
intended to last for at least a decade….
I’d sympathize with these folks if I hadn’t read this
For the 23rd time since 1972, the International Earth Rotation and
Reference System Service added an extra second to the time standard, a
worldwide network of some 200 atomic clocks.
a few paragraphs earlier.
WHAT? You thought the last 22 leap seconds were the only ones that would ever happen? This has been going on since 1972! THIRTY-FOUR YEARS isn’t enough warning? No wonder most software sucks–just like the designers.
I LIKE leap seconds. Reminds us that even the clockwork universe needs a bit of winding from time to time.
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