September

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Tuesday September 1

All day World Autism Awareness Day

Wednesday September 2

All day World Autism Awareness Day

Thursday September 3

All day World Autism Awareness Day

Friday September 4

All day World Autism Awareness Day

Saturday September 5

All day International Day of Charity

All day Pride Leiden

All day World Autism Awareness Day

Sunday September 6

All day World Autism Awareness Day

Monday September 7

All day Duchenne Awareness Day

All day International Day of Clean Air for Blue Skies

All day World Autism Awareness Day

Tuesday September 8

All day International Literacy Day

All day Word Physical Therapy Day

All day World Autism Awareness Day

Wednesday September 9

International Day of the World First Aid Day

All day Teddybear Day

All day World Autism Awareness Day

Thursday September 10

All day World Suicide Prevention Day

All day World Autism Awareness Day

Friday September 11

All day World Autism Awareness Day

Saturday September 12

All day Dutch Heritage Days

All day International Day for South-South Cooperation

All day World Autism Awareness Day

Sunday September 13

All day Dutch Heritage Days

All day International Chocolate Day

All day World Autism Awareness Day

Monday September 14

All day World Autism Awareness Day

Tuesday September 15

All day Greenpeace Day

All day International Day of Democracy

All day International Dot Day

All day Prinsjesdag

All day World Autism Awareness Day

Wednesday September 16

All day International Day for the Preservation of the Ozone Layer

All day World Autism Awareness Day

Thursday September 17

All day International Country Music Day

All day World Autism Awareness Day

Friday September 18

All day International Equal Pay Day

All day World Bamboo Day

All day World Autism Awareness Day

Saturday September 19

All day World Cleanup Day

All day International Talk Like a Pirate Day

All day Software Freedom Day

All day World Autism Awareness Day

Sunday September 20

All day International NFT Day

All day World Autism Awareness Day

Monday September 21

All day International Day of Peace

All day World Autism Awareness Day

Tuesday September 22

All day Dutch Coffee Day

All day World Rhino Day

All day Day of the Pharmacy Assistant

All day World Autism Awareness Day

Wednesday September 23

All day Celebrate Bisexuality Day

All day International Day of Sign Languages

All day World Autism Awareness Day

Thursday September 24

All day World Gorilla Day

All day World Maritime Day

All day World Autism Awareness Day

Friday September 25

All day World Dream Day

All day Daughters Day

All day World Pharmacists Day

All day World Autism Awareness Day

Saturday September 26

All day European Day of Languages

All day World Contraception Day

All day World Autism Awareness Day

Sunday September 27

All day World Tourism Day

All day World Rivers Day

All day World Autism Awareness Day

Monday September 28

All day International Day for Universal Access to Information

All day International Safe Abortion Day

All day World Rabies Day

All day World Autism Awareness Day

Tuesday September 29

All day World Heart Day

All day Dress Red Day

All day World Autism Awareness Day

Wednesday September 30

All day Stroopwafel Day

All day International Translation Day

All day World Autism Awareness Day

September

2026

Harm Jagerman

Important