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Re:Ask HN: Are systems ready for the first negative leap sec... by lesam on Saturday July 11, 2026 @01:39PM (#48873993)
Early in my career, I had to babysit our FX quoting app through the July 2015 leap second.

And some things do trade 24/7 (though I wish they wouldn't, one auction per minute during US east coast business hours would be totally sufficient for most US markets).

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