What are some alternatives?
When comparing Task Scheduler and Free Alarm Clock, you can also consider the following products
Z-Cron - With Z-Cron scheduler you can start and/or quit programs (*.exe, *.com, *.bat) under Windows. Freeware software for automation task service on your system.
Gnome Clocks - Clock application designed for GNOME 3
RoboIntern - An automation and scheduling software with focus on repetitive office tasks.
Talalarmo - Minimalistic android alarm
VisualCron - VisualCron is an automation, integration and task scheduling tool for Windows.
KTimer - KTimer is a little tool to execute programs after some time.