From the “Contemporary Iran” package Dams & Water Industry Day A day honouring Iran's dams and water/hydropower industry Historical confidence: Reconstructed Iran · Observance In nearby years 1403 Sunday 18 Azar 1403 8 December 2024 1404 Tuesday 18 Azar 1404 9 December 2025 1405 Wednesday 18 Azar 1405 9 December 2026 1406 Thursday 18 Azar 1406 9 December 2027 1407 Friday 18 Azar 1407 8 December 2028 Other occasions in this package NowruzNowruz Holidays (Days 2–4)Islamic Republic DayArmy DayIRGC Founding AnniversaryTeachers' DayPersian Gulf National DayWorkers' Day