Two schoolboys with backpacks walking home hand in hand in Shiraz, Iran

Why Does Iran’s School Year Start on 1 Mehr?

If you grew up in Iran, aval-e Mehr—the first of Mehr—may feel less like an ordinary date than a second New Year. New notebooks appear, uniforms are readied, traffic patterns change, and a ceremonial school bell marks the return to classrooms. But why does the Iranian school year begin on 1 Mehr, and when is that date in 2026?

The short answer: Iran organizes its school calendar around the Solar Hijri calendar. Mehr is its seventh month, and 1 Mehr is the calendar’s clean seasonal boundary at the beginning of autumn. It became the conventional opening of the academic year, much as late August or early September serves that role in much of North America.

When is 1 Mehr 1405?

In the Iranian year 1405, 1 Mehr falls on Wednesday, September 23, 2026. The date appears in the official 1405 calendar prepared by the Calendar Center at the University of Tehran.

For a broader month-by-month reference, see our Persian Calendar 1405 guide. A practical rule for this year is:

  • 1 Farvardin 1405: March 21, 2026
  • 1 Shahrivar 1405: August 23, 2026
  • 1 Mehr 1405: September 23, 2026

Official opening ceremonies or local schedules can still be adjusted by education authorities, so families in Iran should follow the current notice from their school. The calendar conversion itself, however, is fixed.

What does “aval-e Mehr” mean?

Aval means “first,” so aval-e Mehr simply means “the first day of Mehr.” In Persian it is written اول مهر or numerically as ۱ مهر.

Mehr is the seventh month of the Solar Hijri calendar. The first six months—Farvardin through Shahrivar—each have 31 days. Mehr begins immediately after that long spring-and-summer half of the year, at the start of the autumn quarter. If the month names are unfamiliar, our guide to the meanings of the Persian months explains their older cultural roots.

Why do Iranian schools start on 1 Mehr?

The important point is that 1 Mehr is not a movable holiday. It is a stable civil-calendar date. Iran’s official calendar begins at Nowruz, around the March equinox, and Mehr opens the second half of the year at the autumn seasonal transition. That makes it an intuitive administrative boundary for returning after the summer break.

Modern school-opening coverage consistently describes the academic year through this date. The Islamic Republic News Agency, for example, identifies the first day of the seventh Iranian month, Mehr, as the start of the new school year. A UNICEF Iran story likewise uses “the first day of Mehr” and “the first day of school” together when describing a child preparing for class.

This does not mean every student in every era entered a classroom on precisely the same Gregorian date. Gregorian equivalents shift because the two calendars begin their years differently, and weekends or special administrative decisions may affect the first day of attendance. The enduring reference point is the Persian date: 1 Mehr.

The meaning of the school bell

The school year is often inaugurated with zang-e madreseh, the school bell. At a selected school, a national or local official rings the bell in a symbolic opening ceremony while schools around the country begin the new academic year.

This is more than a practical signal to enter class. It turns a date on the calendar into a shared national moment. In a September 22, 2024 report from Iran’s Ministry of Information and Communications Technology, the minister rang the opening bell at a school as the new academic year began.

Why 1 Mehr matters before a child starts school

The date also appears in enrollment administration. An official Iranian Ministry of Foreign Affairs school-registration guide tells families that a child’s age is calculated as of 1 Mehr for placement purposes. In other words, the opening date can function as an age cutoff as well as the first page of the school calendar.

That detail helps explain why Iranian parents often speak about a child’s age “by Mehr.” It can affect which academic cohort the child enters, not merely when the backpack comes out of the closet.

A date that travels with the diaspora

Iranian families in the United States and Canada usually follow local school calendars, where classes may begin weeks before 1 Mehr. Even so, the date remains culturally recognizable. Parents remember their own first-day rituals; grandparents send good wishes; Persian-language schools may use the season for registration or a fresh round of classes.

For families navigating two systems, it helps to keep both calendars visible. Our back-to-school guide for Iranian families in the U.S. and Canada offers ideas for bilingual routines, lunch planning, teacher communication, and keeping Persian culture present without adding pressure.

Simple ways to mark 1 Mehr at home

You do not need to recreate an Iranian school day to make the date meaningful. A few small rituals can connect children with family memory:

  • Write both the Persian and Gregorian date at the top of a new notebook.
  • Ask parents or grandparents what they remember about their first day of school in Iran.
  • Choose one Persian word to learn each school day during the first week of Mehr.
  • Make a favorite after-school snack and share old class photographs.
  • Set one realistic learning goal for the autumn.

For planning across both calendars, the Persian Hijri Shamsi Desk Calendar 1405 keeps the Iranian year visible at a desk. The Persian To-Do List Fridge Magnet is useful for homework and family reminders, while the Azadi Tower Spiral Notebook gives the new term a distinctly Tehran-inspired first page.

Frequently asked questions

Does school in Iran always start on September 23?

No. Schools traditionally open on 1 Mehr, a Persian-calendar date. Its Gregorian equivalent can fall on September 22 or 23 depending on the year. In 1405, it is September 23, 2026.

Is Mehr the first month of autumn?

Yes. Mehr is the seventh Persian month and the first month of the autumn quarter. It follows Shahrivar and is followed by Aban.

How do you write the first day of school in Persian?

“The first of Mehr” is اول مهر (aval-e Mehr). “The first day of school” is روز اول مدرسه (ruz-e aval-e madreseh).

What date is 1 Mehr 1405 in North America?

It is Wednesday, September 23, 2026. Because Iran is several hours ahead of North American time zones, family messages or ceremonies seen online may appear on the previous evening locally.

Sources and image credit

Image: Two brothers walking home from school in Shiraz, Iran, photographed by Julia Maudlin on October 15, 2008. Used under CC BY 2.0 via Wikimedia Commons. No changes made.

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