"It works on my machine"—9 places where the same code and commands silently take on different meanings depending on where they run

"It works on my machine." I'm sure you've said it or heard it at least once—in code reviews, in chat, or during incident post ...

"08:00, what time zone is that?" — 10 places where dates and times drift without throwing errors

"My scheduled post went out at 5 PM instead of 8 AM." "The dashboard says all the incidents happened today." "Only the jobs I ...