The Gregorian ↔ Persian Converter is a free online date conversion tool for converting dates between the Gregorian calendar and the Persian calendar.
The Gregorian calendar is the most widely used civil calendar in the world, while the Persian calendar, also known as the Solar Hijri or Jalali calendar, is widely used in Iran.
When working with dates across different calendar systems, converting a date manually can be inconvenient and may lead to mistakes. This converter provides a simple way to compare equivalent dates between the two calendar systems.
You can use the tool to convert a Gregorian date to a Persian date or convert a Persian date to a Gregorian date directly in your browser.
The converter can be useful for everyday date comparisons, historical research, international communication, document preparation, scheduling, and working with dates written in different calendar systems.
What Is the Persian Calendar?
The Persian calendar is a solar calendar commonly known as the Solar Hijri calendar or Jalali calendar.
It is based on the Earth’s movement around the Sun rather than the phases of the Moon. The calendar begins its year around the spring equinox, which is associated with Nowruz, the Persian New Year.
The Persian calendar contains twelve months. The first six months have 31 days, the following five months have 30 days, and the final month has 29 days in a common year and 30 days in a leap year.
The beginning of the Persian year is closely associated with the astronomical spring equinox, which makes the calendar different from purely arithmetic calendar systems.
Gregorian Calendar vs Persian Calendar
The Gregorian and Persian calendars use different systems for organizing years, months, and days.
The Gregorian calendar is a solar calendar with twelve months whose lengths range from 28 to 31 days. It is the standard civil calendar used in most countries.
The Persian calendar is also a solar calendar, but it uses a different structure for its months and year numbering.
Because the two calendars use different starting points and calendar rules, the same day has different year, month, and day numbers in each system.
A single calendar day can therefore be represented using both Gregorian and Persian dates.
A date converter makes this relationship easier to understand without requiring manual calendar calculations.
Gregorian to Persian Date Conversion
A Gregorian to Persian converter changes a date written in the Gregorian calendar into its equivalent Persian calendar date.
This can be useful when working with:
- Iranian dates
- Persian calendar events
- Iranian historical information
- Nowruz dates
- Business records
- International schedules
- Birth dates
- Event dates
- Academic research
- Historical documents
Instead of manually calculating the relationship between the calendars, you can use the converter to obtain the corresponding Persian date.
Persian to Gregorian Date Conversion
A Persian to Gregorian converter performs the conversion in the opposite direction.
This is useful when you have a date written using the Persian calendar and need to determine its equivalent Gregorian date.
Persian dates may appear in Iranian documents, websites, historical references, official records, personal calendars, and other sources.
Converting these dates to the Gregorian calendar can make them easier to compare with international schedules, databases, publications, and documents that use the Gregorian calendar.
Persian Calendar Month Names
The Persian calendar contains twelve months. Their commonly used Latin transliterations are:
| Month | Latin Name |
|---|---|
| 1 | Farvardin |
| 2 | Ordibehesht |
| 3 | Khordad |
| 4 | Tir |
| 5 | Mordad |
| 6 | Shahrivar |
| 7 | Mehr |
| 8 | Aban |
| 9 | Azar |
| 10 | Dey |
| 11 | Bahman |
| 12 | Esfand |
The first six months have 31 days, the following five months have 30 days, and Esfand has 29 days in a common year or 30 days in a leap year.
These Latin spellings are commonly used when Persian calendar month names need to be written for English-speaking or international audiences.
When Is the Persian New Year?
The Persian New Year is known as Nowruz.
Nowruz occurs around the spring equinox and marks the beginning of a new Persian calendar year.
Unlike the Gregorian New Year, which occurs on the fixed calendar date of January 1, the beginning of the Persian year is associated with the spring equinox.
The corresponding Gregorian date can therefore vary depending on the astronomical equinox and the calendar rules used.
This is one reason a reliable date converter can be useful when comparing Persian and Gregorian dates around the beginning of the year.
Is the Persian Calendar Solar or Lunar?
The Persian calendar is a solar calendar.
Its year is based on the Earth’s orbit around the Sun rather than lunar cycles.
This distinguishes it from lunar calendars such as the Islamic Hijri calendar.
The term Solar Hijri refers to the calendar’s historical connection to the Hijra while emphasizing that its year is solar.
What Is the Jalali Calendar?
The term Jalali calendar is historically associated with a Persian calendar developed during the Seljuk period.
The modern Persian calendar is often referred to as the Jalali calendar, Solar Hijri calendar, Persian calendar, or Iranian calendar, although these terms can have different historical or contextual meanings.
For everyday date conversion, these terms are commonly used when referring to the modern Persian solar calendar used in Iran.
Why Use a Gregorian ↔ Persian Converter?
Calendar conversion becomes particularly useful when information from different countries or time periods needs to be compared.
For example, someone researching an Iranian historical event may encounter a Persian calendar date while their research database uses Gregorian dates.
Similarly, someone working with Iranian business records may need to convert Persian dates into Gregorian dates for international documentation.
A calendar converter simplifies this process and reduces the possibility of manual calculation errors.
Common Uses for Persian Date Conversion
A Gregorian and Persian calendar converter can be useful for many situations, including:
- Converting Iranian dates
- Checking historical dates
- Comparing international calendars
- Working with Iranian documents
- Converting birthdays
- Checking event dates
- Academic research
- Historical research
- International business
- Travel planning
- Personal calendar management
- Comparing Persian and Western dates
The main benefit is the ability to quickly understand the same calendar day in two different calendar systems.
Frequently Asked Questions
What is a Gregorian to Persian converter?
A Gregorian to Persian converter is an online tool that converts a date from the Gregorian calendar into its equivalent date in the Persian calendar.
What is a Persian to Gregorian converter?
A Persian to Gregorian converter changes a date from the Persian calendar into the corresponding Gregorian calendar date.
Is the Persian calendar the same as the Iranian calendar?
In modern everyday usage, the terms Persian calendar and Iranian calendar are commonly used to refer to the Solar Hijri calendar used in Iran.
Is the Persian calendar the same as the Islamic calendar?
No. The modern Persian calendar is a solar calendar, while the commonly used Islamic Hijri calendar is a lunar calendar.
The two calendars have different month structures, year lengths, and calculation systems.
How many months are in the Persian calendar?
The Persian calendar has twelve months.
The first six months have 31 days, the next five have 30 days, and the final month has 29 or 30 days depending on the year.
When does the Persian calendar year begin?
The Persian calendar year begins around the spring equinox and is celebrated as Nowruz.
What is the first month of the Persian calendar?
The first month is Farvardin.
What is the last month of the Persian calendar?
The final month is Esfand.
Esfand has 29 days in a common year and 30 days in a leap year.
Is the Persian calendar accurate?
The modern Persian calendar is a highly precise solar calendar. Its relationship to the spring equinox keeps it closely aligned with the astronomical solar year.
Can I convert historical Persian dates to Gregorian dates?
Yes, calendar conversion can be used to determine the Gregorian equivalent of many Persian calendar dates.
However, historical dates may require additional consideration because different calendar systems and historical conventions have been used over time.
