Task Scheduler - The Task Scheduler enables you to automatically perform routine tasks on a chosen computer. Task Scheduler does this by monitoring whatever criteria you choose (referred to as triggers) and then executing the tasks when their criteria are met.
Reminder Commander - Reminder manager that reminds you about important events in advance.
System Scheduler - System Scheduler for Windows, Free Task Scheduler Software replace Microsoft Windows Task Scheduler
Date Reminder - Date Reminder reminds you of recurring or nonrecurring events, like birthdays, bills to pay...
RoboIntern - An automation and scheduling software with focus on repetitive office tasks.
Scheduled tasks - GNOME GUI for configuring a users' cron (automatic jobs). Some of its features are: