One Nepōhualtzintzin (91) represented the number of days that a season of the year lasts, two Nepōhualtzitzin (182) is the number of days of the corn's cycle, from its sowing to its harvest, three Nepōhualtzintzin (273) is the number of days of a baby's gestation, and four Nepōhualtzintzin (364) completed a cycle and approximated one year.
wˈʌn nˈɛpoʊhjˌuːɐltsˌɪntsɪn nˈaɪnti wˈʌn ɹˌɛpɹᵻzˈɛntᵻd ðə nˈʌmbɚɹ ʌv dˈeɪz ðˌæɾə sˈiːzən ʌvðə jˈɪɹ lˈæsts, tˈuː nˈɛpoʊhjˌuːɐltsˌɪtsɪn wˈʌnhˈʌndɹɪd ˈeɪɾi tˈuː ɪz ðə nˈʌmbɚɹ ʌv dˈeɪz ʌvðə kˈɔːɹnz sˈaɪkəl, fɹʌm ɪts sˈoʊɪŋ tʊ ɪts hˈɑːɹvɪst, θɹˈiː nˈɛpoʊhjˌuːɐltsˌɪntsɪn tˈuːhˈʌndɹɪd sˈɛvənti θɹˈiː ɪz ðə nˈʌmbɚɹ ʌv dˈeɪz əvə bˈeɪbiz dʒɛstˈeɪʃən, ænd fˈoːɹ nˈɛpoʊhjˌuːɐltsˌɪntsɪn θɹˈiːhˈʌndɹɪd sˈɪksti fˈoːɹ kəmplˈiːɾᵻd ɐ sˈaɪkəl ænd ɐpɹˈɑːksɪmˌeɪɾᵻd wˈʌn jˈɪɹ.