农历 (nóng lì): the traditional Chinese calendar; the lunar calendar

The date of Spring Festival is determined according to the lunar calendar, so it falls on a different day on the Gregorian calendar each year.

Grandma is used to recording family members' birthdays using the lunar calendar; she says this way she won't easily forget important traditional festivals.

This year's Mid-Autumn Festival falls on the 15th day of the 8th month in the lunar calendar, which happens to be a Friday, so everyone can enjoy the moon together.

Although I now use the Gregorian calendar to schedule work, whenever the end of the lunar year comes around, I think of the lively New Year atmosphere at home when I was a child.

The calendar on a mobile phone can usually switch between the Gregorian and lunar calendars, making it convenient to check the exact dates of traditional festivals.