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sexagenary cycle; 60-term cycle of 12 zodiac animals combined with 5 elements in the traditional Chinese calendar; currently used in Japan for years, historically also for days
12-year Chinese zodiac
おばあちゃんの干支は何ですか？
Grandma, what's your zodiac animal?
年賀状には今年の干支が描かれています。
This year's New Year's card features an illustration of the zodiac animal.
郵便局では、毎年干支にちなんだ切手が発売されます。
At the post office, stamps featuring the zodiac animal are released every year.