11 We begin the fast of forty days on the twenty-third of Mechir (Feb. 17), and the holy fast of the blessed feast on the twenty-eighth of Phamenoth (March 24); and having joined to these six days after them, in fastings and watchings, as each one is able, let us rest on the third of the month Pharmuthi (March 29), on the evening of the seventh day. Also that day which is holy and blessed in everything, which possesses the name of Christ, namely the Lord's day, having risen upon us on the fourth of Pharmuthi (March 30), let us afterwards keep the holy feast of Pentecost. Let us at all times worship the Father in Christ, through Whom to Him and with Him be glory and dominion by the Holy Ghost for ever and ever. Amen. All the brethren who are with me salute you: salute one another with a holy kiss.
There is no eighth or ninth, for he did not send them, for the reason before mentioned.
Here ends the seventh Festal Letter of holy Athanasius the Patriarch.
Source: Letters (New Advent)