April 2027 has an unusual shape: Easter fell in March, so the month runs almost uninterrupted a rare stretch of uninterrupted weeks that suits longer campaigns.
Its centre of gravity is Earth Day on 22 April, flanked by World Health Day on the 7th and World Book and Copyright Day on the 23rd. Orthodox Holy Week starts at the end of the month, with Orthodox Easter falling on 2 May.
To help you plan your brand's campaigns, Instagram giveaways and social media content, we've put together the complete calendar of special days in April 2027.
Special days in April 2027
1 April (Thursday)
April Fools' Day 🤡
International Fun at Work Day 🎉
2 April (Friday)
WORLD AUTISM AWARENESS DAY 💙 (UN)
International Children's Book Day 📚
3 April (Saturday)
World Party Day 🎊
Find a Rainbow Day 🌈
4 April (Sunday)
International Day for Mine Awareness ⚠️ (UN)
International Carrot Day 🥕
World Rat Day 🐀
5 April (Monday)
International Day of Conscience 🕊️ (UN)
Star Trek First Contact Day 🖖
6 April (Tuesday)
International Day of Sport for Development and Peace 🏅 (UN)
Tartan Day 🧣
7 April (Wednesday)
WORLD HEALTH DAY 🩺 (WHO)
International Day of Reflection on the Genocide against the Tutsi in Rwanda 🕯️ (UN)
Beer Day 🍺
8 April (Thursday)
International Romani Day 🌹
Zoo Lovers Day 🦁
9 April (Friday)
Unicorn Day 🦄
Name Yourself Day 🏷️
10 April (Saturday)
Siblings Day 👫
World Homeopathy Day 🌿
Hug Your Dog Day 🐕
11 April (Sunday)
World Parkinson's Day 💜
National Pet Day 🐾
12 April (Monday)
International Day of Human Space Flight 🚀 (UN)
Drop Everything and Read Day 📖
Grilled Cheese Day 🧀
13 April (Tuesday)
Scrabble Day 🎲
International Plant Appreciation Day 🌿
14 April (Wednesday)
International Day of Pink 🩷
World Chagas Disease Day 🦟
Gardening Day 🌱
15 April (Thursday)
WORLD ART DAY 🎨 (UNESCO)
Titanic Remembrance Day 🚢
16 April (Friday)
World Voice Day 🎤
Librarian Day 📚
Orchid Day 🌸
17 April (Saturday)
World Hemophilia Day 🩸
International Day of Peasants' Struggle 🌾
18 April (Sunday)
International Day for Monuments and Sites — World Heritage Day 🏛️ (UNESCO)
World Amateur Radio Day 📻
19 April (Monday)
World Liver Day 🫀
Bicycle Day 🚲
20 April (Tuesday)
UN Chinese Language Day 🀄
Cold Brew Day ☕
21 April (Wednesday)
WORLD CREATIVITY AND INNOVATION DAY 💡 (UN)
Passover begins at sundown ✡️
World Curlew Day 🐦
22 April (Thursday)
EARTH DAY — INTERNATIONAL MOTHER EARTH DAY 🌍 (UN)
International Girls in ICT Day 💻 (fourth Thursday)
23 April (Friday)
WORLD BOOK AND COPYRIGHT DAY 📚 (UNESCO)
English Language Day 🔤
Spanish Language Day 🗣️
Talk Like Shakespeare Day 🎭
24 April (Saturday)
World Veterinary Day 🐾 (last Saturday)
International Day of Multilateralism and Diplomacy for Peace 🤝 (UN)
Fashion Revolution Day 👗
World Day for Laboratory Animals 🐇
25 April (Sunday)
WORLD MALARIA DAY 🦟 (WHO)
World Penguin Day 🐧
DNA Day 🧬
Orthodox Palm Sunday 🌿
26 April (Monday)
World Intellectual Property Day 💡 (WIPO)
International Chernobyl Disaster Remembrance Day ☢️ (UN)
Alien Day 👽
Pretzel Day 🥨
27 April (Tuesday)
World Design Day 🎨
World Tapir Day 🦛
28 April (Wednesday)
WORLD DAY FOR SAFETY AND HEALTH AT WORK 🦺 (ILO)
International Guide Dog Day 🦮 (last Wednesday)
Pay It Forward Day 🤲
Superhero Day 🦸
29 April (Thursday)
INTERNATIONAL DANCE DAY 💃 (UNESCO)
World Wish Day ⭐
30 April (Friday)
INTERNATIONAL JAZZ DAY 🎷 (UNESCO)
Orthodox Good Friday ✝️
Honesty Day 🤝
Social media post ideas for April 2027
The structural fact of the month is that Easter already happened in March, which leaves April 2027 with an almost unbroken run of working weeks.
That's unusual and worth using: it's the best window of the first half of the year for a campaign that needs several weeks to build, rather than one that spikes around a single date.
🌎 Earth Day on 22 April is the biggest date of the month and the one where credibility matters most. Greenwashing is now spotted fast, and a vague "we care about the planet" post from a brand with no visible practice behind it does more harm than silence.
Earth Month gives you the whole of April to build up to it, and Fashion Revolution Week around the 24th marking the Rana Plaza anniversary is the sharper, supply chain-focused version of the same conversation for anyone in apparel.
Orthodox Holy Week begins with Palm Sunday on 25 April and Good Friday on the 30th, leading to Orthodox Easter on 2 May so for audiences in Greece, Eastern Europe, Russia and the Orthodox diaspora, the end of April is the quiet run-up to their most important holiday of the year, not a normal week.
For lighter reach the month is rich: Siblings Day on the 10th is a reliable engagement driver, World Art Day on the 15th and International Dance Day on the 29th suit visual and video-first brands, and International Jazz Day on the 30th closes the month well for hospitality and lifestyle.
Giveaway dates and campaign ideas for April
April rewards giveaways that ask people to make something rather than just tag a friend.
You could run a month long Earth Month challenge that culminates on 22 April, asking participants to share one small change they've made it produces genuine user content and avoids the greenwashing trap; run a book-swap or "recommend a book" giveaway on World Book Day, 23 April; and close the month with a music or dance giveaway around International Dance Day on the 29th and International Jazz Day on the 30th.
With Simpliers you can run Instagram giveaways in seconds, transparently and verifiably.
