noun, suffix
General term for a calendar or almanac. The reading れき is used as a suffix in compounds such as 西暦 (seireki, 'Common Era') or 旧暦 (kyūreki, 'old lunar calendar').
See also: カレンダー
新しい年の暦を壁に掛けた。
I hung the new year's calendar on the wall.
旧暦では、今日は七夕です。
According to the old lunar calendar, today is Tanabata.