Older people always remind me to change my clocks for Daylight Saving Time.

There was a period of time when some devices did the change automatically, while others needed you to manually do it. Given that you could be late for something important, it makes sense to check whether your devices are up to date. For example, my phone will change it on its own, but my fitness tracker needs to sync with my phone to do it, so it would be easy to forget and find myself running to a late appointment.