01:10, mirror hour

In 01:10, the hour and minutes do not repeat the same pair. They reverse it: the 01 of the hour becomes the 10 of the minutes. A reversed mirror hour in the small hours of the night, where the digits on either side of the colon read back to front.

Add both sides of the colon and you get two, a number about the other party. This late, you replay the conversation rather than the day, and a reversed hour is a fair picture of that: the same words in the other order, coming out different. It is allowed to leave it there until morning.