ASUS dubs this feature as the core of the ZenUI as it manages your daily schedules. Instead of viewing and managing information from different apps (e.g. calendar and weather apps), What’s Next automatically displays countdowns (for birthdays and meetings), reminders for appointments and weather forecasts.
You can access What’s Next through a standalone app, on the notification bar and a widget that can be placed on the home and/ or lock screen so that information is readily available when you need it.
The countdown timer is handy for users who are too busy to keep track of the time.