Most every ride I do starts in the morning. And many of those rides last into the afternoon. This creates a need to be aware of the time so that you can update your greetings for fellow cyclists, knowing when to correctly change from “Good Morning” to “Good Afternoon.”
Motivated mostly by laziness, but also a bit by bragging/ego/pride, I’d like to propose a greeting convention for cyclists. A cyclist’s greeting to other cyclists should be based on when that cyclist started their ride. So, if a ride starts in the morning, then you just keep right on saying “Good Morning” until you’re done riding, even if that’s 3pm.
Then, for those awesome century plus rides (or, better yet, a solstice ride), you can beam with pride as you yell “Good Morning” to a fellow rider at 7pm.