Anytime you add an event by clicking “+” at the right end of the timeline or open an “Update Event” window by clicking on an existing event, you’ve got the option to get a reminder for that event. Interested?
To get or edit the reminder:
Now just sit back and wait. That reminder’s coming. We can feel it!
Note: For now, instant message and SMS reminders are only available in the full version of Yahoo! Calendar. Still – it’s only a click away! Click Calendar on the left of your Mail page to get there.