日历
rì lì · HSK 4
calendar
📅 日历 = 日 (day/sun) + 历 (calendar/passage of time)
日 means day or sun; 历 carries the sense of going through or experiencing time, and shows up in words like 历史 (history). Together: the record of days passing — a calendar.
日 — pictograph of the sun
日 is a pictograph of the sun, originally drawn as a circle with a dot or stroke inside representing the sun's substance. Over time the round shape was squared off into the modern rectangular form. It means 'sun' and by extension 'day'.