Tiffany Janzen on Instagram: "Most people dont know this but every so often, scientists add a leap second into our global clock, UTC. Instead of going from 23:59:59 straight to midnight… the clock shows 23:59:60. That means the day has 86,401 seconds instead of 86,400. But here’s the problem: what happens when computers see a time that technically… shouldn’t exist? Some systems freeze. Databases crash. Servers reboot. All because they weren’t programmed to handle that extra second. Now here is G