how time flies

(My,) how time flies.

1. Time has gone by quickly, it is time for me to go. Bill: Look at the clock! Mary: How time flies! I guess you'll be going. Bill: Yes, I have to get up early. John: My watch says it's nearly midnight. How time flies! Jane: Yes, it's late. We really must go.
2. Time passes quickly. (Said especially when talking about how children grow and develop.) "Look at how big Billy is getting," said Uncle Michael. "My, how time flies." Tom: It seems it was just yesterday that I graduated from high school. Now I'm a grandfather. Mary: My, how time flies.
See also: flies, how, time
References in classic literature ?
You must make your conversation regarding my dear new country of England less interesting, so that I may not forget how time flies by us," and with a courtly bow, he quickly left me.
He said: "It is shocking how time flies but there are two ways you can look at this situation.
By January, after the pre and post Boxing Day sales, spring sales in winter and "last day of spring sales" just (and only just) prior to pre-summer sales we'll be ready once again for Guy Fawkes - how time flies, which reminds me (if not already reminded
It feels like it was yesterday, it really is weird how time flies.
My, how time flies - six years on, and Patrick Caulfield's up for another retrospective.
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