Similar to メトン周期

CID

Transcription factor Jun

CLIÉ

CLS (command)

CMAC

Active-pixel sensor

CMYK color model

Coco

Code-excited linear prediction

Lunisolar calendar

Undecimber

Indian national calendar

Vikram Samvat

Intercalary month

Half moon

Ancient Greek calendars

New moon

Lunar month

Tibetan calendar

Babylonian calendar

Chula Sakarat