Cultural calendar
Persian Calendar 2027 (Solar Hijri 1405–1406)
2027 spans the last three months of Solar Hijri 1405 and the first nine months of 1406. Nowruz 1406 falls on Sunday, March 21, 2027, one day after the astronomical equinox, because the equinox occurs after noon Tehran time.
2027 Solar Hijri months
| Month # | Persian name | Gregorian span | Days |
|---|---|---|---|
| 10 | Dey 1405 | Dec 22, 2026 – Jan 20, 2027 | 30 |
| 11 | Bahman 1405 | Jan 21 – Feb 19, 2027 | 30 |
| 12 | Esfand 1405 | Feb 20 – Mar 20, 2027 | 29 |
| 1 | Farvardin 1406 | Mar 21 – Apr 20, 2027 Nowruz starts | 31 |
| 2 | Ordibehesht 1406 | Apr 21 – May 21, 2027 | 31 |
| 3 | Khordad 1406 | May 22 – Jun 21, 2027 | 31 |
| 4 | Tir 1406 | Jun 22 – Jul 22, 2027 | 31 |
| 5 | Mordad 1406 | Jul 23 – Aug 22, 2027 | 31 |
| 6 | Shahrivar 1406 | Aug 23 – Sep 22, 2027 | 31 |
| 7 | Mehr 1406 | Sep 23 – Oct 22, 2027 | 30 |
| 8 | Aban 1406 | Oct 23 – Nov 21, 2027 | 30 |
| 9 | Azar 1406 | Nov 22 – Dec 21, 2027 | 30 |
Esfand 1405 has 29 days because 1405 is a common year; 1406 is also a common year, so Nowruz 1407 falls on March 20, 2028.
Major Persian holidays in 2027
- Chaharshanbe Suri — the evening of Tuesday, March 16, 2027 (the last Tuesday night before Nowruz). Fire-jumping festival.
- Nowruz (Persian New Year) — Sunday, March 21, 2027. 1406 AP begins. The exact moment of the vernal equinox is 17:55 Tehran time on March 20, so the new year is counted from the following day.
- Sizdah Bedar — Friday, April 2, 2027 (13 Farvardin). Nature day, spent outdoors.
- Tirgan — Sunday, July 4, 2027 (13 Tir). Midsummer water festival.
- Mehregan — Saturday, October 2, 2027 (10 Mehr, the traditional "16 Mehr" of the old reckoning). Festival of autumn and friendship.
- Yalda (Shab-e Yalda) — the night of Tuesday, December 21, 2027, the longest night of the year, before the first day of Dey 1406.
Converting dates in 2027
To convert a Gregorian date in 2027 to Solar Hijri, find the month span above: April 15, 2027 is 26 Farvardin 1406; November 10, 2027 is 19 Aban 1406; January 5, 2027 is 15 Dey 1405. The first six Persian months have 31 days, the next five have 30, and Esfand has 29 or 30.
Why Nowruz is on March 21 in 2027 but March 20 in 2028
The Solar Hijri year begins on the day of the vernal equinox if the equinox occurs before noon in Tehran, and on the following day otherwise. In 2027 the equinox falls at 17:55 Tehran time on March 20, so 1 Farvardin 1406 is March 21. In 2028 it falls in the early morning of March 20, so 1 Farvardin 1407 is March 20. This astronomical rule is what makes the calendar more accurate than the Gregorian leap-year scheme.
Looking back: the Persian calendar 2026 (1404–1405).