I know that some people believe that chicken keepers are always up before dawn, but my chickens get out when I'm good and ready to let them out. They don't dictate my schedule to that degree.
It's not that we aren't up sometimes by 7 a.m., however, we are retired, no schedule we must keep, so that day, we were sound asleep. Threw my whole day off. I've always been told it's rude to call prior to 9 a.m. unless someone is expecting my call. Just because they're up doesn't mean they want to start talking to people that early.