You can use Mac OS X's iCal to automatically run an AppleScript on a particular date and time. You can use this ability to send e-mails, interact with applications, and perform tasks without needing anybody around to oversee the work.
Let's ask iCal to run an AppleScript on 10 March 2011 at 10:00 am.
- Open iCal: Applications > iCal
- Navigate to the month of March.
- Click on the 10th March to select the day.
- Create a new event on the selected day: File > New Event
- A New Event panel will appear; in this panel:
- Change the from and to dates to 10:00 am.
- Click on the None next to the alarm label.
- Select Run Script from the alarm menu.
- An open dialog will appear; select the AppleScript to run.
- Once an AppleScript is selected, two new items will appear next to the alarm label: (name of the AppleScript) and 15 minutes before.
- Click on the 15 minutes before, a little below the alarm label.
- Select on date from the menu.
- A new date and time control will now appear. Change this date and time control to 10:00 am.
- Click Done to finish editing the event.
- Your new event is now scheduled.
There are a couple of notable limitations to using iCal as a scheduling tool:
- You must be logged in for the AppleScript to run.
- Your Mac must be powered on and awake when the event is due.