What do you mean by "clock"? What do you want to do?
Remember that Stamps are not very good at keeping time when they have to do anything else ... because they don't have a built-in real time clock. You can always add an external real time clock chip.
There is a nice example of this in the Nuts and Volts Columns. Go to the main Parallax webpage and click on the Resources tab, then the Nuts and Volts Columns section. That'll take you to the index. I think it's column #33
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Remember that Stamps are not very good at keeping time when they have to do anything else ... because they don't have a built-in real time clock. You can always add an external real time clock chip.
There is a nice example of this in the Nuts and Volts Columns. Go to the main Parallax webpage and click on the Resources tab, then the Nuts and Volts Columns section. That'll take you to the index. I think it's column #33
Its not a real time clock,,,but computer generated display counter24:00 with seconds