Story time:
Last week, I was scheduled to show up to work at 7:30 a.m. This means, with my 25 minute drive, I generally wake up at 6:30 a.m. I got a call at 6:00 a.m. telling me I needed to be to work by 6:15, I obviously ignored that call because it's before my alarm, and I keep my phone on do not disturb for this reason.
Anyway, I showed up as early as I reasonably could and they were still not happy with me.