There are examples for accessing a real time clock like the DS1302 or DS1307. Look in the Nuts and Volts Columns (go to the main Parallax webpage, choose the Resources tab and look in the list presented). I don't remember which column #, but it wouldn't hurt to browse through them. SparkFun has a nice breakout board for the DS1302 or DS1307 that includes a backup battery and crystal ... ready to go.
Parallax also has examples for the uoLED display. Check the webstore page for the product. Almost all of Parallax's webstore product pages have links to documentation and sample programs.
It happens that there are two other current threads regarding an RTC in some fashion. Several options have been presented including code in these threads. Links are below. I hope this helps. Take care.
Comments
Parallax also has examples for the uoLED display. Check the webstore page for the product. Almost all of Parallax's webstore product pages have links to documentation and sample programs.
http://forums.parallax.com/showthread.php?p=732853
http://forums.parallax.com/showthread.php?p=733319
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Chris Savage
Parallax Tech Support