Number 13 on the Clock

The clock's meaning and purpose is to tell the time.

Sometimes, people remember seeing specific numbers out of all the numbers they see during the course of a day.

Generally, the reason certain numbers are remembered is because those numbers were paid more attention than the numbers that were not remembered.

When a number is remembered, it is because it was noticed and thought about, perhaps even just a brief thought of, "oh, I see that number again." Event a little bit of extra attention can make the number more likely to be remembered.

The number 13 is your birth day number. Remembering the clock times may have started when you recognized your birth day number within the time. Wondering why you see a number makes it more likely that the number is seen again — actually, it is virtually certain that wondering why will cause you to notice it when you see the number again.

See the Starting to See Certain Numbers Again and Again article for more information about that. And also Why You See Certain Numbers All the Time.