Updating local pc clock from a atomic clock site???

[windos_no_thanks]

So, the querry still stands, how and where do I place a shell script that can be accessed by any user. Permissions have already been set for all my users to run the script, and sudo has been enabled on these users as well...

Umm, you could just put it in root's crontab instead and perhaps add something in the beginning of it so that it aborts if it doesn't have network connectivity.