Our plan is to keep charting until the Winter Solstice, after which the days will gradually begin to grow longer again. My girls are surprisingly intrigued by this project; this morning they were enthusiastically announcing the sunrise time to the other kids at the bus stop (at which we arrived only one minute past the official sun-up time, gah!).
Try It! If you want to track the entire season, use the Internet to go back in time and catch-up on sunrise and sunset times where you live, since the Equinox (September 22nd). Or, from here on, use a poster board or nature journal to record the daily sunrise/sunset times (available online, or typically in your local daily paper). Alternatively, you could record the times weekly, on the same day each week.
* If you do this, let's compare notes! Post a comment here telling where you are and how many minutes of daylight you've lost since the Fall Equinox.