DN 23

yaṃ kho pana, rājañña, mānussakaṃ vassasataṃ, devānaṃ tāvatiṃsānaṃ eso eko rattin'divo, tāya rattiyā tiṃsarattiyo māso, tena māsena dvādasamāsiyo saṃvaccharo, tena saṃvaccharena dibbaṃ vassasahassaṃ devānaṃ tāvatiṃsānaṃ āyuppamāṇaṃ.

Pv 21

bahū māse ca pakkhe ca, utusaṃvaccharāni ca, mahādānaṃ pavattesi, aṅkuro dīgham'antaraṃ.