If your birthday lands on a workday, the smartest move you can make is to take the day off. Your birthday only comes once a year, and spending it in meetings or answering emails is not the way to go. Use the day for yourself sleep in, eat what you want, and enjoy not having to think about work for even a minute.
And if your boss happens to message you asking where you are, just send them this Roll Safe birthday meme. It says everything that needs to be said. You can’t be late for work if you don’t go in at all. That’s birthday logic, and honestly, it’s hard to argue with. You can also send this to your coworker if they have a birthday and need a day off.
The point is, birthdays should be about you, not deadlines. Whether you spend it with friends, family, or just by yourself, the day will be a lot better without a pile of tasks hanging over your head. Work will still be there tomorrow, but your birthday only comes around once a year make it count.