Business Alarm Clock is not your regular alarm app! It does have all the alarm clock features & more! However, it also has meeting/event reminders for different time zones. Do you have a meeting with a client at 10AM? Do you know the time difference? Do you need a reminder when its 10AM in that city? Do you need to call your mom tomorrow in another city? Instead of setting your alarm for your time zone, set the alarm for their time zone.