From the “Contemporary Iran” package Sacred Defense Week Commemorates the start of the eight-year Iran–Iraq War on 22 September 1980 Historical confidence: Attested Iran · Observance In nearby years 1403 Saturday 31 Shahrivar 1403 21 September 2024 7 days 1404 Monday 31 Shahrivar 1404 22 September 2025 7 days 1405 Tuesday 31 Shahrivar 1405 22 September 2026 7 days 1406 Wednesday 31 Shahrivar 1406 22 September 2027 7 days 1407 Thursday 31 Shahrivar 1407 21 September 2028 7 days Other occasions in this package NowruzNowruz Holidays (Days 2–4)Islamic Republic DayArmy DayIRGC Founding AnniversaryTeachers' DayPersian Gulf National DayWorkers' Day