From the “Contemporary Iran” package Workers' Day Coincides with 1 May, International Workers' Day Historical confidence: Attested Iran · Observance In nearby years 1403 Tuesday 11 Ordibehesht 1403 30 April 2024 1404 Thursday 11 Ordibehesht 1404 1 May 2025 1405 Friday 11 Ordibehesht 1405 1 May 2026 1406 Saturday 11 Ordibehesht 1406 1 May 2027 1407 Sunday 11 Ordibehesht 1407 30 April 2028 Other occasions in this package NowruzNowruz Holidays (Days 2–4)Islamic Republic DayArmy DayIRGC Founding AnniversaryTeachers' DayPersian Gulf National DayLiberation of Khorramshahr