五ご十とお日び

noun

days of the month ending in 5 or 0 (when payments are often due)

Refers specifically to the 5th, 10th, 15th, 20th, 25th, and 30th of the month, which are traditional settlement days in Japanese business.

• 五ご十とお日びには銀ぎん行こうが混こみ合あう。

  Banks get crowded on days ending in 5 or 0.

• 請せい求きゅう書しょの支し払はらいは五ご十とお日びまでにお願ねがいします。

  Please make the payment by the 5th, 10th, 15th, 20th, 25th, or 30th.