Explaining Daylight Savings Time

Trying to explain Daylight Savings Time to our pet birds has proved to be difficult.  Clocks and DST don't mean very much to them. They get up when the sun is up and go to sleep when it is dark.  I am not fond of this spring and fall clock moving business either.  It usually takes me a week or more to get adjusted to it.  In retirement it should be much easier.  We no longer use alarm clocks.  It's wonderful.