Have you ever noticed how analog clocks in catalogs and ads usually read 10:10?
The idea behind this (I've been told) is the clocks look "happy" at that time.
Why is the clock happy?
One theory is that the hands look like a smile.
We just started the 9:00 am schedule at church, starting with Sacrament Meeting. As that 70 minute meeting was ending yesterday, I looked up at the clock.
Maybe that's why 10:10 is considered a happy time.