What Time is It?

I try to wedge little lessons into my daughter's day. The other morning, we were in the kitchen, standing by the digital clock and I asked her if she could tell me what time it was. She said, "I don't know." So, of course, I wasn't about to let it go. I said, "What's the first number?", pointing to the digital display. She said, "Seven." "Good!", I replied. Then I asked, "What's the next number?" She answered, "Dot dot."