From the “Christian” package Trinity Sunday Honouring the doctrine of the Trinity, 56 days after Easter Historical confidence: Attested In nearby years 1403 Sunday 6 Khordad 1403 26 May 2024 1404 Sunday 25 Khordad 1404 15 June 2025 1405 Sunday 10 Khordad 1405 31 May 2026 1406 Sunday 2 Khordad 1406 23 May 2027 1407 Sunday 22 Khordad 1407 11 June 2028 Other occasions in this package EpiphanyTheophany (Orthodox Epiphany)AnnunciationAssumption of MaryAll Saints' DayAll Souls' DayChristmas (Western)Christmas (Orthodox)