Use the Calendar application to manage your time schedule.
If you have signed in to and synchronized your device with one or several online accounts that include calendars, for example, your Google account, then calendar events from these accounts will also appear in the Calendar application. You can select which calendars you want to integrate into the combined Calendar view.
When an appointment time approaches, your device plays a notification sound to remind you. Also, (Calendar notification icon) appears in the status bar.
Access settings, select a view type and the calendars that you want to view
Access an overview of the current month
Return to the current date
View more options
Scroll up or down to browse the calendar
Add a calendar entry