How does oppo phone remember the things in the date?

Open the calendar and click the icon-Settings in the upper left corner to personalize your calendar.

1. Start day of the week: choose one day from Monday to Sunday as the start day.

2. Display legal holidays: select whether to display legal holidays.

3. Display contact's birthday: select whether to display the contact's birthday.

4. Display China Gregorian calendar: select whether to display China Gregorian calendar.

5. Display holiday information: after opening, display holiday information in the schedule area.

6. Personalized reminder time: click the default reminder time to set the whole day schedule, birthday/anniversary/countdown day schedule and reminder time.

7. Set time zone: After the time zone priority option is turned on, you can set the time zone yourself. When opened, the date and time of the schedule are always displayed in the selected time zone first. If off, the time will be displayed according to the current time zone.

This answer applies to all OPPO models.