Iranian Calendar 1405: Persian Dates and Observances

What does the year 1405 mean?

Iran’s national calendar uses Solar Hijri years. It follows a solar year while using an era associated with the Hijra. The number 1405 names this calendar year; Gregorian 2026 and 2027 describe overlapping parts of it.

Each day in Babylon Persia can be read in three ordinary date systems: Solar Hijri, the published Iranian lunar Hijri date, and Gregorian. Babylon’s letter and sky readings sit alongside that calendar information.

The twelve months of 1405

These boundaries are generated directly from the 365 daily rows in this edition’s calendar data. Dates below use Gregorian year-month-day notation.

Holidays, observances and Fridays

The source transcription retains printed public holidays, regular Fridays, main-table observances and appendix entries as distinct fields. A date with an observance is not necessarily a public holiday. Open the date in the calendar to read its English summary, original Persian wording and source-page number.

The source data records 26 printed holiday days, 189 core days containing events and 128 appendix entries. These are different counts; several entries can belong to one civil day.

Use the calendar with its sources

Open the full calendar to select a month, choose a day or search an observance. The underlying PDF comes from the University of Tehran’s Institute of Geophysics, Calendar Center. Later sighting announcements and exceptional closures are outside this saved edition unless its data is updated.