lì​fǎ

calendar system

历法 (曆法) lì​fǎ frequency
calendar system noun
a specific system or method for organizing time into intervals such as days, months, and years based on astronomical cycles
历法 (歷法) lì​fǎ
calendar noun
calendar system; calendrical method

Frequency

Movie subtitles
0.150 per million appears in 0% of films
Written text
0.816 per million

Sources

Definitions
CC-CEDICT