Counting

One night, my husband and I were going to go out on a date, so we were having a baby-sitter.  Cinderella was very excited, and couldn't wait until the baby-sitter got there.  She asked me when the baby-sitter was coming.  I told her in an hour.  She asked how many seconds that was.  My husband replied that it is 3,600 seconds.  

Cinderella then started counting.  1,2,3,4,5,6,7,8, three-thousand-six-hundred, OK, she's here!