Converting a Solar Hijri (Shamsi) date to a Gregorian (Miladi) date involves transitioning between two solar-based systems that use different starting points (epochs) and month structures. Understanding the Two Systems

Solar Hijri (Shamsi): Currently the official civil calendar in Iran. It begins each year on the vernal equinox (Nowruz), typically around March 21. It counts years from the Prophet Muhammad's migration (Hijrah) in 622 CE.

Gregorian (Miladi): The internationally used civil calendar. It also follows the solar cycle but starts its year on January 1 and counts from the birth of Jesus Christ (Anno Domini). How to Convert Shamsi to Miladi

Because both calendars follow the sun's orbit, their year lengths are identical (365 or 366 days), making conversion more consistent than lunar systems.

Determine the Year Difference: Generally, adding 621 or 622 years to a Shamsi year provides the Miladi equivalent.

Add 621 years: If the Shamsi date falls between January 1 and the start of the Persian New Year (around March 20/21).

Add 622 years: If the Shamsi date falls after the Persian New Year (after March 21) through December 31. Specific Example: To convert the Shamsi year 1403: Dates before Nowruz (Spring): Dates after Nowruz (Spring): Month Correlation

The first six months of the Shamsi calendar have 31 days, and the next five have 30 days. Farvardin 1 (Nowruz): Typically corresponds to March 21. Tir 1: Typically corresponds to June 21 (Summer Solstice).

Mehr 1: Typically corresponds to September 23 (Autumn Equinox).

Dey 1: Typically corresponds to December 22 (Winter Solstice). Tools for Precise Conversion

For exact day-to-day accuracy, especially during leap years, it is recommended to use an Iranian Date Converter or dedicated mobile apps like the Date Converter.

The conversion from Tarikh Shamsi (Solar Hijri) to Miladi (Gregorian) is a common need for scheduling, official documentation, and history. Because the Solar Hijri year usually begins on the vernal equinox (around March 21), the relationship between the two calendars shifts slightly depending on whether the date falls before or after the Iranian New Year (Nowruz). 1. General Conversion Logic

To convert a Solar Hijri (SH) year to a Gregorian (AD) year, use these simple rules of thumb:

For the first 9 months of the SH year (Farvardin to Azar):Add 621 years to the Solar year.Example: 1403 SH + 621 = 2024 AD.

For the last 3 months of the SH year (Dey to Esfand):Add 622 years to the Solar year.Example: 1403 SH + 622 = 2025 AD. 2. Month Equivalencies

While the exact start days can vary by one day due to leap years, the general alignment is as follows: Solar Hijri Month Approximate Gregorian Start Farvardin Ordibehesht Khordad Tir Mordad Shahrivar Mehr September 23 Aban October 23 Azar November 22 Dey December 22 Bahman January 21 Esfand February 20 3. Key Differences Between the Calendars

Year Zero: The Solar Hijri calendar begins with the Hijra (migration) of Prophet Muhammad in 622 AD.

Accuracy: The Solar Hijri calendar is an astronomical calendar, meaning it is tied to the actual movement of the earth around the sun, making it one of the most accurate seasonal calendars in the world.

Leap Years: Both calendars use leap years, but the Solar Hijri leap year occurs every 4 or 5 years based on complex astronomical observations, whereas the Gregorian calendar follows a fixed mathematical rule (every 4 years, with century exceptions). 4. How to Convert Specific Dates

If you need an exact date (e.g., 15 Mehr 1350), it is best to use a digital converter to account for leap year shifts. Popular tools include: Time.ir: The standard reference for Iranian time and dates.

Calendar.az: A common tool for Persian and Gregorian conversions.

Tarikh shamsi b miladi refers to the conversion process between the Solar Hijri (Shamsi) calendar—predominantly used in Iran and Afghanistan—and the Gregorian (Miladi) calendar used globally. Understanding this conversion is essential for international travel, business, and official documentation for those moving between Persian-speaking regions and the rest of the world. The Two Calendar Systems

This report examines the Solar Hijri calendar (Tarikh-e Hijri Shamsi), the official timekeeping system of Iran and Afghanistan, and its conversion to the Gregorian calendar (Tarikh-e Miladi). Overview of the Solar Hijri Calendar

The Solar Hijri calendar is a solar-based system that is widely considered one of the most accurate in the world due to its reliance on astronomical observations rather than fixed rules.

Starting Point (Epoch): Like the Lunar Hijri calendar, it starts from the year of the Prophet Muhammad's migration (Hijrah) in 622 CE.

New Year (Nowruz): The year begins at the exact moment of the Vernal Equinox (the start of spring in the Northern Hemisphere), typically on March 21.

Accuracy: It has an error of only one day in about 110,000 years, making it more precise than the Gregorian calendar, which drifts by one day every 3,226 to 3,333 years. Calendar Structure

The year is divided into 12 months, with lengths determined by the Earth's orbit: Month Order Persian Name Month Length Gregorian Equivalent Farvardin to Shahrivar 31 days each March – September Mehr to Bahman 30 days each September – February 29 days (30 in leap years) February – March

Leap Year Rule: Leap years occur every 4 or 5 years. This is typically managed through a 33-year cycle (8 leap years) or, more rarely, a 29-year cycle. Quick Conversion Guide

Because the Solar Hijri year begins in March, a single Shamsi year spans parts of two Miladi years. Year Conversion Formula:

For dates before the start of the next Miladi year (Jan 1): Miladi Year = Shamsi Year + 621

For dates after the start of the next Miladi year: Miladi Year = Shamsi Year + 622

Current Comparison (Example): As of April 2026, the current year is 1405 SH. Practical Tools for Conversion

For precise day-to-day conversion, several digital tools and methods are available:

Tarikh Shamsi vs Miladi: Understanding the Differences and Conversions

The solar calendar, also known as the Tarikh Shamsi or Persian calendar, and the Gregorian calendar, commonly referred to as the Miladi calendar, are two widely used calendar systems across the world. While the Miladi calendar is the most widely used internationally, the Tarikh Shamsi has significant cultural and historical importance in countries like Iran, Afghanistan, and Tajikistan. This article aims to explore the origins, differences, and conversion methods between these two calendar systems.

Origins of Tarikh Shamsi (Persian Calendar)

The Tarikh Shamsi, or Persian calendar, has its roots in ancient Persia (modern-day Iran). It is a solar calendar that was introduced in 1079 CE by the Seljuk Sultan Jalaluddin Malikshah I. This calendar is based on the solar year, with the beginning of the new year (Nowruz) marking the spring equinox. The Tarikh Shamsi consists of 12 months, with the months being: Farvardin, Ordibehesht, Khordad, Tir, Mordad, Shahrivar, Mehr, Aban, Azar, Dey, Bahman, and Esfand.

Origins of Miladi (Gregorian Calendar)

The Miladi calendar, also known as the Gregorian calendar, was introduced by Pope Gregory XIII in 1582 CE. It is a solar calendar that is based on a 365-day year, with an extra day added every four years (leap year). The Miladi calendar is the most widely used calendar internationally and is used as the global standard for business, travel, and communication.

Key Differences between Tarikh Shamsi and Miladi Calendars

The main differences between the Tarikh Shamsi and Miladi calendars are:

  1. Start of the Year: The Tarikh Shamsi year begins on the spring equinox (March 20 or 21 in the Miladi calendar), while the Miladi calendar begins on January 1.
  2. Length of the Year: A Tarikh Shamsi year is approximately 365.24 days, similar to the Miladi calendar. However, the Tarikh Shamsi calendar has a more accurate calculation of the solar year, with an error of only about 1 day every 3,300 years.
  3. Months: The Tarikh Shamsi has 12 months, with the first six months having 31 days, the next five months having 30 days, and the last month (Esfand) having 29 days (or 30 days in leap years). The Miladi calendar has 12 months, with the months having 28, 29, 30, or 31 days.

Converting between Tarikh Shamsi and Miladi Calendars

Converting between the two calendars can be done using the following methods:

  1. Online Conversion Tools: There are numerous online tools and websites that provide conversion services between the Tarikh Shamsi and Miladi calendars.
  2. Manual Conversion: To convert a Tarikh Shamsi date to a Miladi date, you can use the following formula:

Miladi Year = Tarikh Shamsi Year + 621 Miladi Month = Tarikh Shamsi Month - 3 (or add 9 if the Tarikh Shamsi month is less than 7)

For example, to convert the Tarikh Shamsi date 1399-01-01 (March 20, 2020) to a Miladi date:

Miladi Year = 1399 + 621 = 2020 Miladi Month = 1 - 3 = March (or add 9: 1 + 9 = 10, which corresponds to October, but this is incorrect)

The correct conversion is: 1399-01-01 (Tarikh Shamsi) = March 20, 2020 (Miladi)

Conclusion

The Tarikh Shamsi and Miladi calendars have distinct differences in their origins, structures, and conversion methods. While the Miladi calendar is widely used internationally, the Tarikh Shamsi calendar holds significant cultural and historical importance in certain regions. Understanding the differences and conversion methods between these two calendars can facilitate communication, trade, and cultural exchange between communities that use different calendar systems.

Table of Month Names

| Tarikh Shamsi Month | Miladi Equivalent | Days | | --- | --- | --- | | Farvardin | March-April | 31 | | Ordibehesht | April-May | 31 | | Khordad | May-June | 31 | | Tir | June-July | 31 | | Mordad | July-August | 31 | | Shahrivar | August-September | 31 | | Mehr | September-October | 30 | | Aban | October-November | 30 | | Azar | November-December | 30 | | Dey | December-January | 30 | | Bahman | January-February | 30 | | Esfand | February-March | 29/30 |

This table provides a quick reference to the Tarikh Shamsi months and their corresponding Miladi equivalents.

Converting a date from the (Solar Hijri) calendar to the (Gregorian) calendar requires a precise calculation because the calendars have different starting points and leap year rules. The Solar Hijri year 1404 corresponds to the Gregorian year 2025/2026. Quick Conversion Guide To convert a Shamsi date to Miladi, you generally add

, depending on whether the date falls before or after the Iranian New Year (Nowruz, typically March 21). The Journal of Specialised Translation Shamsi Season Shamsi Months Gregorian Equivalent (Approx.) Farvardin, Ordibehesht, Khordad March 21 – June 21 Tir, Mordad, Shahrivar June 22 – Sept 22 Mehr, Aban, Azar Sept 23 – Dec 21 Dey, Bahman, Esfand Dec 22 – March 20 *Esfand has 29 days in common years and 30 in leap years. Recommended Conversion Tools

For precise, day-to-day accuracy, use dedicated online converters:

: A widely used online Iranian date converter for switching between Solar Hijri, Gregorian, and Lunar Hijri calendars. Kodoom Tools

: Provides a simple interface for converting both forward and backward between Miladi and Shamsi. Tabdil App

: A mobile-friendly option for tracking cultural celebrations and important dates. Taghvim.com Key Calendar Differences New Year (Nowruz)

: The Shamsi calendar begins on the vernal equinox (March 19–21). Month Lengths

: The first six months have 31 days, while the next five have 30 days. Date Format : Iranians typically write dates as Day / Month / Year (e.g., ۲۸ مرداد ۱۴۰۴ for 28 Mordad 1404). Do you have a specific date you need converted, or would you like to see the leap year schedule for the current decade?

تبدیل تاریخ Iranian Date Converter 2026 - Taghvim.com

Practical Use Cases

  1. Official Documents: In Iran, birth certificates, passports, and contracts use the Shamsi date. For international use, the Miladi date is often added.
  2. Travel & Visa: Airline tickets and hotel bookings often require the Miladi date. When applying for visas, both calendars may be requested.
  3. Historical Research: When studying Persian history or Islamic events, it's vital to convert correctly (e.g., the 1979 Islamic Revolution occurred in 1357 Shamsi = 1979 Miladi).
  4. Software & Apps: Most smartphone calendars (e.g., Google Calendar on Android) allow you to enable the "Persian" or "Shamsi" calendar alongside the default Gregorian calendar.

Example: Convert 15 Mehr 1401 Shamsi to Miladi

Tarikh Shamsi vs. Tarikh Miladi: Understanding the Difference and Conversion

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.

✅ Summary Cheat Sheet

Would you like a printable one-page conversion chart for 1390–1410 Shamsi (2011–2031 Miladi)?

بنیادی فرق

Accurate Method (recommended)

Because leap years differ (Shamsi is astronomically more precise), use one of these:

  1. Online converter: Search “Shamsi to Miladi converter” (e.g., time.ir, date-converter.com)
  2. Formula in Excel / Google Sheets:
    • =DATE(ShamsiYear+621, ShamsiMonth, ShamsiDay) — then adjust for month offsets (Farvardin = March).
    • Easier: use a dedicated calendar converter script or API.

How to Convert Shamsi to Miladi

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.

Tarikh Shamsi B Miladi (2026)

Converting a Solar Hijri (Shamsi) date to a Gregorian (Miladi) date involves transitioning between two solar-based systems that use different starting points (epochs) and month structures. Understanding the Two Systems

Solar Hijri (Shamsi): Currently the official civil calendar in Iran. It begins each year on the vernal equinox (Nowruz), typically around March 21. It counts years from the Prophet Muhammad's migration (Hijrah) in 622 CE.

Gregorian (Miladi): The internationally used civil calendar. It also follows the solar cycle but starts its year on January 1 and counts from the birth of Jesus Christ (Anno Domini). How to Convert Shamsi to Miladi

Because both calendars follow the sun's orbit, their year lengths are identical (365 or 366 days), making conversion more consistent than lunar systems.

Determine the Year Difference: Generally, adding 621 or 622 years to a Shamsi year provides the Miladi equivalent.

Add 621 years: If the Shamsi date falls between January 1 and the start of the Persian New Year (around March 20/21).

Add 622 years: If the Shamsi date falls after the Persian New Year (after March 21) through December 31. Specific Example: To convert the Shamsi year 1403: Dates before Nowruz (Spring): Dates after Nowruz (Spring): Month Correlation

The first six months of the Shamsi calendar have 31 days, and the next five have 30 days. Farvardin 1 (Nowruz): Typically corresponds to March 21. Tir 1: Typically corresponds to June 21 (Summer Solstice).

Mehr 1: Typically corresponds to September 23 (Autumn Equinox).

Dey 1: Typically corresponds to December 22 (Winter Solstice). Tools for Precise Conversion

For exact day-to-day accuracy, especially during leap years, it is recommended to use an Iranian Date Converter or dedicated mobile apps like the Date Converter.

The conversion from Tarikh Shamsi (Solar Hijri) to Miladi (Gregorian) is a common need for scheduling, official documentation, and history. Because the Solar Hijri year usually begins on the vernal equinox (around March 21), the relationship between the two calendars shifts slightly depending on whether the date falls before or after the Iranian New Year (Nowruz). 1. General Conversion Logic

To convert a Solar Hijri (SH) year to a Gregorian (AD) year, use these simple rules of thumb:

For the first 9 months of the SH year (Farvardin to Azar):Add 621 years to the Solar year.Example: 1403 SH + 621 = 2024 AD.

For the last 3 months of the SH year (Dey to Esfand):Add 622 years to the Solar year.Example: 1403 SH + 622 = 2025 AD. 2. Month Equivalencies

While the exact start days can vary by one day due to leap years, the general alignment is as follows: Solar Hijri Month Approximate Gregorian Start Farvardin Ordibehesht Khordad Tir Mordad Shahrivar Mehr September 23 Aban October 23 Azar November 22 Dey December 22 Bahman January 21 Esfand February 20 3. Key Differences Between the Calendars

Year Zero: The Solar Hijri calendar begins with the Hijra (migration) of Prophet Muhammad in 622 AD.

Accuracy: The Solar Hijri calendar is an astronomical calendar, meaning it is tied to the actual movement of the earth around the sun, making it one of the most accurate seasonal calendars in the world. tarikh shamsi b miladi

Leap Years: Both calendars use leap years, but the Solar Hijri leap year occurs every 4 or 5 years based on complex astronomical observations, whereas the Gregorian calendar follows a fixed mathematical rule (every 4 years, with century exceptions). 4. How to Convert Specific Dates

If you need an exact date (e.g., 15 Mehr 1350), it is best to use a digital converter to account for leap year shifts. Popular tools include: Time.ir: The standard reference for Iranian time and dates.

Calendar.az: A common tool for Persian and Gregorian conversions.

Tarikh shamsi b miladi refers to the conversion process between the Solar Hijri (Shamsi) calendar—predominantly used in Iran and Afghanistan—and the Gregorian (Miladi) calendar used globally. Understanding this conversion is essential for international travel, business, and official documentation for those moving between Persian-speaking regions and the rest of the world. The Two Calendar Systems

This report examines the Solar Hijri calendar (Tarikh-e Hijri Shamsi), the official timekeeping system of Iran and Afghanistan, and its conversion to the Gregorian calendar (Tarikh-e Miladi). Overview of the Solar Hijri Calendar

The Solar Hijri calendar is a solar-based system that is widely considered one of the most accurate in the world due to its reliance on astronomical observations rather than fixed rules.

Starting Point (Epoch): Like the Lunar Hijri calendar, it starts from the year of the Prophet Muhammad's migration (Hijrah) in 622 CE.

New Year (Nowruz): The year begins at the exact moment of the Vernal Equinox (the start of spring in the Northern Hemisphere), typically on March 21.

Accuracy: It has an error of only one day in about 110,000 years, making it more precise than the Gregorian calendar, which drifts by one day every 3,226 to 3,333 years. Calendar Structure

The year is divided into 12 months, with lengths determined by the Earth's orbit: Month Order Persian Name Month Length Gregorian Equivalent Farvardin to Shahrivar 31 days each March – September Mehr to Bahman 30 days each September – February 29 days (30 in leap years) February – March

Leap Year Rule: Leap years occur every 4 or 5 years. This is typically managed through a 33-year cycle (8 leap years) or, more rarely, a 29-year cycle. Quick Conversion Guide

Because the Solar Hijri year begins in March, a single Shamsi year spans parts of two Miladi years. Year Conversion Formula:

For dates before the start of the next Miladi year (Jan 1): Miladi Year = Shamsi Year + 621

For dates after the start of the next Miladi year: Miladi Year = Shamsi Year + 622

Current Comparison (Example): As of April 2026, the current year is 1405 SH. Practical Tools for Conversion

For precise day-to-day conversion, several digital tools and methods are available:

Tarikh Shamsi vs Miladi: Understanding the Differences and Conversions Converting a Solar Hijri (Shamsi) date to a

The solar calendar, also known as the Tarikh Shamsi or Persian calendar, and the Gregorian calendar, commonly referred to as the Miladi calendar, are two widely used calendar systems across the world. While the Miladi calendar is the most widely used internationally, the Tarikh Shamsi has significant cultural and historical importance in countries like Iran, Afghanistan, and Tajikistan. This article aims to explore the origins, differences, and conversion methods between these two calendar systems.

Origins of Tarikh Shamsi (Persian Calendar)

The Tarikh Shamsi, or Persian calendar, has its roots in ancient Persia (modern-day Iran). It is a solar calendar that was introduced in 1079 CE by the Seljuk Sultan Jalaluddin Malikshah I. This calendar is based on the solar year, with the beginning of the new year (Nowruz) marking the spring equinox. The Tarikh Shamsi consists of 12 months, with the months being: Farvardin, Ordibehesht, Khordad, Tir, Mordad, Shahrivar, Mehr, Aban, Azar, Dey, Bahman, and Esfand.

Origins of Miladi (Gregorian Calendar)

The Miladi calendar, also known as the Gregorian calendar, was introduced by Pope Gregory XIII in 1582 CE. It is a solar calendar that is based on a 365-day year, with an extra day added every four years (leap year). The Miladi calendar is the most widely used calendar internationally and is used as the global standard for business, travel, and communication.

Key Differences between Tarikh Shamsi and Miladi Calendars

The main differences between the Tarikh Shamsi and Miladi calendars are:

  1. Start of the Year: The Tarikh Shamsi year begins on the spring equinox (March 20 or 21 in the Miladi calendar), while the Miladi calendar begins on January 1.
  2. Length of the Year: A Tarikh Shamsi year is approximately 365.24 days, similar to the Miladi calendar. However, the Tarikh Shamsi calendar has a more accurate calculation of the solar year, with an error of only about 1 day every 3,300 years.
  3. Months: The Tarikh Shamsi has 12 months, with the first six months having 31 days, the next five months having 30 days, and the last month (Esfand) having 29 days (or 30 days in leap years). The Miladi calendar has 12 months, with the months having 28, 29, 30, or 31 days.

Converting between Tarikh Shamsi and Miladi Calendars

Converting between the two calendars can be done using the following methods:

  1. Online Conversion Tools: There are numerous online tools and websites that provide conversion services between the Tarikh Shamsi and Miladi calendars.
  2. Manual Conversion: To convert a Tarikh Shamsi date to a Miladi date, you can use the following formula:

Miladi Year = Tarikh Shamsi Year + 621 Miladi Month = Tarikh Shamsi Month - 3 (or add 9 if the Tarikh Shamsi month is less than 7)

For example, to convert the Tarikh Shamsi date 1399-01-01 (March 20, 2020) to a Miladi date:

Miladi Year = 1399 + 621 = 2020 Miladi Month = 1 - 3 = March (or add 9: 1 + 9 = 10, which corresponds to October, but this is incorrect)

The correct conversion is: 1399-01-01 (Tarikh Shamsi) = March 20, 2020 (Miladi)

Conclusion

The Tarikh Shamsi and Miladi calendars have distinct differences in their origins, structures, and conversion methods. While the Miladi calendar is widely used internationally, the Tarikh Shamsi calendar holds significant cultural and historical importance in certain regions. Understanding the differences and conversion methods between these two calendars can facilitate communication, trade, and cultural exchange between communities that use different calendar systems.

Table of Month Names

| Tarikh Shamsi Month | Miladi Equivalent | Days | | --- | --- | --- | | Farvardin | March-April | 31 | | Ordibehesht | April-May | 31 | | Khordad | May-June | 31 | | Tir | June-July | 31 | | Mordad | July-August | 31 | | Shahrivar | August-September | 31 | | Mehr | September-October | 30 | | Aban | October-November | 30 | | Azar | November-December | 30 | | Dey | December-January | 30 | | Bahman | January-February | 30 | | Esfand | February-March | 29/30 | Start of the Year : The Tarikh Shamsi

This table provides a quick reference to the Tarikh Shamsi months and their corresponding Miladi equivalents.

Converting a date from the (Solar Hijri) calendar to the (Gregorian) calendar requires a precise calculation because the calendars have different starting points and leap year rules. The Solar Hijri year 1404 corresponds to the Gregorian year 2025/2026. Quick Conversion Guide To convert a Shamsi date to Miladi, you generally add

, depending on whether the date falls before or after the Iranian New Year (Nowruz, typically March 21). The Journal of Specialised Translation Shamsi Season Shamsi Months Gregorian Equivalent (Approx.) Farvardin, Ordibehesht, Khordad March 21 – June 21 Tir, Mordad, Shahrivar June 22 – Sept 22 Mehr, Aban, Azar Sept 23 – Dec 21 Dey, Bahman, Esfand Dec 22 – March 20 *Esfand has 29 days in common years and 30 in leap years. Recommended Conversion Tools

For precise, day-to-day accuracy, use dedicated online converters:

: A widely used online Iranian date converter for switching between Solar Hijri, Gregorian, and Lunar Hijri calendars. Kodoom Tools

: Provides a simple interface for converting both forward and backward between Miladi and Shamsi. Tabdil App

: A mobile-friendly option for tracking cultural celebrations and important dates. Taghvim.com Key Calendar Differences New Year (Nowruz)

: The Shamsi calendar begins on the vernal equinox (March 19–21). Month Lengths

: The first six months have 31 days, while the next five have 30 days. Date Format : Iranians typically write dates as Day / Month / Year (e.g., ۲۸ مرداد ۱۴۰۴ for 28 Mordad 1404). Do you have a specific date you need converted, or would you like to see the leap year schedule for the current decade?

تبدیل تاریخ Iranian Date Converter 2026 - Taghvim.com

Practical Use Cases

  1. Official Documents: In Iran, birth certificates, passports, and contracts use the Shamsi date. For international use, the Miladi date is often added.
  2. Travel & Visa: Airline tickets and hotel bookings often require the Miladi date. When applying for visas, both calendars may be requested.
  3. Historical Research: When studying Persian history or Islamic events, it's vital to convert correctly (e.g., the 1979 Islamic Revolution occurred in 1357 Shamsi = 1979 Miladi).
  4. Software & Apps: Most smartphone calendars (e.g., Google Calendar on Android) allow you to enable the "Persian" or "Shamsi" calendar alongside the default Gregorian calendar.

Example: Convert 15 Mehr 1401 Shamsi to Miladi

Tarikh Shamsi vs. Tarikh Miladi: Understanding the Difference and Conversion

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.

✅ Summary Cheat Sheet

Would you like a printable one-page conversion chart for 1390–1410 Shamsi (2011–2031 Miladi)?

بنیادی فرق

Accurate Method (recommended)

Because leap years differ (Shamsi is astronomically more precise), use one of these:

  1. Online converter: Search “Shamsi to Miladi converter” (e.g., time.ir, date-converter.com)
  2. Formula in Excel / Google Sheets:
    • =DATE(ShamsiYear+621, ShamsiMonth, ShamsiDay) — then adjust for month offsets (Farvardin = March).
    • Easier: use a dedicated calendar converter script or API.

How to Convert Shamsi to Miladi

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.