The Shamsi calendar (also called the Solar Hijri or Jalali calendar) is used officially in Iran and Afghanistan. The Miladi (Gregorian) calendar is the international standard.
While Tarikh Miladi dominates the global stage, Tarikh Shamsi remains a vital cultural pillar for millions. The Solar Hijri calendar is scientifically lauded for its precision regarding the solar cycle and the equinox. Whether you are planning a trip to Tehran, studying history, or managing international business, understanding the conversion between these two systems is indispensable.
The process of converting a (Solar Hijri) date to (Gregorian) involves bridging two distinct ways of measuring time—one rooted in astronomical observation and the other in a fixed-rule cycle. The Conversion Logic
Converting between these two systems generally follows a simple offset, but requires careful attention to the start of the solar year: Year Offset : To find the Gregorian year, you generally add (if the date is between Farvardin and Azar) or (if it is between Dey and Esfand) to the Shamsi year. The Pivot Point : The Solar Hijri year begins on the Vernal Equinox (usually March 20 or 21), which marks the first day of Month Structure
: The first six months of the Shamsi calendar (Farvardin to Shahrivar) have , the next five (Mehr to Bahman) have , and the final month (Esfand) has (or 30 in leap years). Online Tools for Instant Conversion
For precise calculations, especially those involving leap years, the following digital converters are highly reliable: General Purpose Taghvim.com tarikh shamsi b miladi
are the standard web tools for quick Iranian-to-Gregorian shifts. Mobile Apps Persian Calendar app on Google Play
provides a dual-view interface for tracking both calendars simultaneously. Technical Tools : If you need to automate this in Excel or programming, SourceForge PyPI's shamsi-datetime offer libraries and scripts for developers. Quick Reference Example As of today, April 16, 2026 , the corresponding Persian date is 27 Farvardin 1405
تبدیل تاریخ Iranian Date Converter 2026 - Taghvim.com
Converting dates between the Solar Hijri calendar (also known as the Persian calendar or Shamsi calendar) and the Gregorian calendar (also known as the Miladi calendar) involves a bit of calculation. The Solar Hijri calendar is used in Iran and Afghanistan, among other places, and is based on the solar year, which is the time it takes the Earth to orbit the Sun.
The Solar Hijri calendar begins on the vernal equinox (the first day of spring), which falls on March 20 or March 21 in the Gregorian calendar. The calendar is a lunisolar calendar but is mostly solar, and its months are directly tied to the solar seasons. The Shamsi calendar (also called the Solar Hijri
To convert a date from the Solar Hijri (Shamsi) calendar to the Gregorian (Miladi) calendar, you can follow a simple process:
Here is a basic conversion guide:
The terms Tarikh Shamsi (Solar Hijri) and Tarikh Miladi (Gregorian) refer to two of the most widely used calendar systems in the world today. While the Gregorian calendar is the international standard for civil use, the Solar Hijri calendar remains the official calendar in Iran and Afghanistan.
Understanding the history, structure, and conversion methods between these two is essential for historical research, cultural understanding, and administrative purposes.
Tarikh Miladi, meaning "Birth Date" or "Christian Date," is the internationally accepted civil calendar. Its epoch is the traditionally recognized year of the birth of Jesus Christ. Here is a basic conversion guide: The terms
For converting Miladi to Shamsi, you do the opposite:
For tech-savvy readers, here is a Python function using the jdatetime library (precise conversion):
import jdatetime
from datetime import datetime
def shamsi_to_miladi(year, month, day):
"""Convert Solar Hijri to Gregorian"""
shamsi_date = jdatetime.date(year, month, day)
gregorian_date = shamsi_date.togregorian()
return gregorian_date
Add 621 from Nowruz to the end of autumn; add 622 from the start of winter until Nowruz.
Let’s define:
Important: The Shamsi year begins on March 20 or 21 of the Gregorian calendar (the vernal equinox).
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