PUSHING THE WHOLE COMPANY INTO THE PAST ON PURPOSE

Summary from the TLDR Web Dev newsletter

In 2015, the author prevented a repeat of a previous system failure caused by a leap second by implementing "leap smearing." This involved subtly slowing down the company's internal time for 20 hours before the leap second, making it effectively one second behind the rest of the world. The author tested this method extensively using custom-built clocks and various systems.