Different calendars are in use in Iran :
Wednesday, Sep 12, 2001 the gregorian calendar
Shahrivar 21, 1380 the persian calendair Jumada II 23, 1422 the muslim calendar
The different months are :
Farvardin
Ordibehesht
Khordâd
Tir
Mordâd
Shahrivar
Mehr
Âbân
Âzar
Dei (ou Dey)
Bahman
Esfand