Nature Day - On Nature Day, all bad luck is getting discarded — a day for Iranians to have fun and prepare for a productive new year. Enjoy!

Nature Day 2024 – April 1, 2024

Nature Day, or in the Persian language, ‘Sizdah Be-dar,’ is an Iranian public holiday celebrated on April 2 in normal years and April 1 in leap years. This year, it falls on April 2. In Iranian culture, it is celebrated on the 13th day of ‘Farvardin’ — the first month of the Iranian calendar, to mark the end of the ‘Nowruz’ celebrations, and is generally described as a day for Iranians to relax and have fun in their individual choices of open spaces. All over the country, picnicking dominates, and both adults and the young feel enthusiastic, and planning for the day starts well in advance.

History of Nature Day

The origin of Nature Day in Iran is rooted in Zoroastrianism. About 4,000 years ago, ‘Sidaz Be-dar’ was celebrated in ancient Iran to worship ‘Teshtar,’ the god of rain, in the hopes that the prayers offered that day would make the god overcome the drought demon and send in the rains. Over the past few centuries, the day has been stripped of its religious affiliations and is now seen more as a cultural holiday than a religious one.‘Sizdah Be-dar’ simply means “getting rid of the number 13.” In Iran, just as in many world cultures, the number 13 is feared as an ominous number. ‘Triskaidekaphobia’ is the scientific term for this fear. Iranians believe that by going out for picnics in places like parks and the countryside on the 13th day of the ‘Nowruz’ celebrations, they are discarding all their bad luck and would start the rest of the year on a good note. The last activity of the day’s celebration is generally believed to perform that task. At the end of the picnics, observers take green plant shoots grown from the beginning of the ‘Nowruz’ celebrations and release them on flowing water bodies, usually rivers or streams.Besides releasing green plant shoots on rivers, a version of the western ‘April Fool’ known as ‘Lie of the Thirteenth’ is observed on the day and typically involves playing pranks on others. Other fun activities marking the day include singing, dancing, chattering, playing games, and for the young singles, tying knots in the grass, hoping that doing so would bring them spouses — a practice that also has strong affiliations to an Iranian religious myth. Iranian foods like ‘Sekanjabin’ (a drink made from vinegar and honey) and ‘Ash-e Doogh’ (yogurt syrup) are generally consumed on this day.

Nature Day timeline

4,000 Years Ago
Earliest ‘Sizdah Be-dar’ Celebration

The holiday is celebrated thousands of years ago according to Iranian mythology and Zoroastrianism.

1800 B.C.
Ancient Nature Day Celebration

Nature Day is celebrated as ‘Tir’ or ‘Teshtar’ in ancient Iran before the emergence of Asho Zoroastrianism.

536 B.C.
Pranks on Nature Day

Pranks are played on Nature Day in the Achaemenid Empire.

Historical Records Revealed

The historical records of the Nature Day celebration are revealed in texts from the Iranian Qajar dynasty.

Nature Day FAQs

How many days is ‘Nowruz?’

The ‘Nowruz’ celebrations run for two weeks and end on Nature Day.

Who celebrates ‘Nowruz?’

‘Nowruz’ is majorly celebrated by Iranians and some Kurdish tribes in Turkey, Iraq, and Syria. Although it is not widely recognized, ‘Nowruz’ is also celebrated by Afghanis, Indians, Pakistanis, and Azerbaijanis.

Is ‘Nowruz’ a religious holiday?

According to recent reports, ‘Nowruz’ is considered a secular or cultural rather than a religious holiday. However, some of its activities are deeply rooted in ancient Iranian religions and mythologies.

Nature Day Activities

  1. Prepare those special treats

    Nature Day celebration is almost incomplete without a good dose of ‘Sekanjabin.’ Make sure you prepare or get some.

  2. Have a picnic

    This is, in fact, what makes the day worthy of celebrating. Go on a picnic with your family and do all the fun things you want. Don't forget to release those green shoots on the river, though.

  3. Prepare for the year ahead

    Since Nature Day ends the ‘Nowruz’ celebration, don't just rely on your good luck to count. Prepare for the wonderful remaining parts of the year.

5 Facts About The Persian Calendar That Will Interest You

  1. A perfect calendar

    The Persian calendar is perfect and is considered to be many times more accurate than its Gregorian counterpart.

  2. Months have a consecutive number of days

    The first six months on the calendar have 31 days while the last six months have 30 days, except for the last month — ‘Esfand,’ which can be 29 or 30 in leap years.

  3. Corresponds with the seasons

    Dividing the 12 months into groups of three is perfectly matched with separating the four seasons into a year, i.e., seasons fall within three months each.

  4. Corresponds with zodiac signs

    Its month corresponds perfectly with the zodiac signs, meaning that a zodiac sign perfectly falls within one single, whole month.

  5. Schools resume on the same day

    All Iranian schools resume on the first day of the month of ‘Mehr,’ unlike other nations having different school resumption dates.

Why We Love Nature Day

  1. It reveals culture

    Every nation values its culture and wants to display it every chance it gets. Nature Day allows Iranians to share and celebrate their historical Persian culture.

  2. It brings goodwill

    According to Iranian beliefs, activities during the holiday ward off evil and herald the good things. We love it because it brings glad tidings.

  3. It is fun

    Many fun outdoor activities are carried out on Nature Day, leaving observers happier and their spirits lifted. We love this!

Nature Day dates

Year Date Day
2022 April 2 Saturday
2023 April 2 Sunday
2024 April 1 Monday
2025 April 2 Wednesday
2026 April 2 Thursday
Take Down Tobacco National Day of Action
April Fools' Day
National One Cent Day
International Fun at Work Day
National Sourdough Bread Day
Edible Book Day
Fossil Fools Day
Odisha Day
Tatting Day
Library Snap Shot Day
Mathematics and Statistics Awareness Month
Lupus Alert Day
St. Stupid Day
National Fun Day
Nickelodeon Anniversary Celebration Day
Reading is Funny Day
U.S. Air Force Academy Day
Martyrdom of Imam Ali
Boomer Bonus Days
Nature Day
Cyprus National Holiday
White House Easter Egg Roll
Community Garden Week
Assyrian New Year
National Trombone Players Day
Dyngus Day
Myles Day
National Connor Day
National Loyal Day
National Greeting Card Day
U.S. Air Force Academy Day
Investiture of the Captains Regent in San Marino
Logan Paul's Birthday
Rachel Maddow's Birthday
Randy Orton's Birthday
Jonny May's Birthday
Sean Taylor's Birthday
National Window Safety Week
Testicular Cancer Awareness Week
National Public Health Week
Be Kind to Spiders Week
Medication Safety Week
National Bake Week
National Cancer Registrars Week
International Pooper Scooper Week
Laugh at Work Week
National Blue Ribbon Week
Golden Rule Week
Take Your Poet to School Week
Keep America Beautiful Month
Move More Month
National Humor Month
National Soft Pretzel Month
National Soy Foods Month
Prevention of Cruelty to Animals Month
Scottish American Heritage Month
Sexual Assault Awareness Month
Stress Awareness Month
National Poetry Month
National Welding Month
National Month of Hope
Child Abuse Awareness Month
National Volunteer Month
National Pecan Month
Month of the Military Child
Jazz Appreciation Month
National Internship Awareness Month
Couple Appreciation Month
IBS Month
National Alcohol Awareness Month
National Multiple Birth Awareness Month
National Decorating Month
National Garden Month
Occupational Therapy Month
Records and Information Management Month
Parkinson's Awareness Month
National Fresh Celery Month
Canine Fitness Month
Testicular Cancer Awareness Month
Autism Acceptance Month
Financial Literacy Month
World Landscape Architecture Month
National Car Care Month
Fair Housing Month
Distracted Driving Awareness Month
National Grilled Cheese Month
National Youth Sports Safety Month
Counseling Awareness Month
Straw Hat Month
National Knuckles Down Month
Confederate History Month
Prevent Lyme Disease in Dogs Month
STI Awareness Month
Primary Immunodeficiency Awareness Month
National Garlic Month
Panagyaman Rice Festival
Earth Month
Physical Wellness Month
Filipino Food Month
National Literature Month
Workplace Conflict Awareness Month
National Woodworking Month
Rosacea Awareness Month
Defeat Diabetes Month
National Foot Health Awareness Month
Fresh Florida Tomato Month
National African American Women's Fitness Month
Global Child Nutrition Month
Emotional Overeating Awareness Month
School Library Month
International Amateur Radio Month
Poetic Earth Month
Ridvan Festival (Bahá'i)
Dog Appreciation Month
Brussels Sprouts and Cabbage Month
SunSmart Skin Cancer Prevention
Children and Nature Awareness Month
National Minority Health Month
Bowel Cancer Awareness Month
National Pet First Aid Awareness Month
National Sexual Assault Awareness and Prevention Month
Step up for 30 For Bowel Cancer Month
National Adopt a Greyhound Month
National Sjogren's Syndrome Awareness Month
Summer Tire Changeover Month
Parliamentary Law Month
The Fuji Shibazakura Festival
National Kite Month
National Heartworm Awareness Month
National Frog Month
National BLT Sandwich Month
National Social Security Month
International Customer Loyalty Month
National Donate Life Month
Cesarean Awareness Month
National Card and Letter Writing Month
National Safe Digging Month
Pharmacists War on Diabetes Month
Informed Woman Month
Worldwide Bereaved Spouses Awareness Month
Tomatillo and Asian Pear Month
Women's Eye Health and Safety Month
Adopt a Ferret Month
Sarcoidosis Awareness Month
National Financial Capability Month
National Facial Protection Month
Arab American Heritage Month
Sports Eye Safety Awareness Month
Multicultural Communication Month
Grange Month
National Pest Management Month
Global Astronomy Month
Cancer Control Month
Genocide Awareness Month
National Rebuilding Month
National Sexually Transmitted Diseases (STD)'s Education and Awareness Month
Celebrate Diversity Month
International Guitar Month
National Food Month