International Workers' Day
Labour rights are human rights — honouring the workers who built the modern world.
About
International Workers' Day — also known as Labour Day or May Day — is celebrated on May 1 as a commemoration of the labour movement and the achievements of workers in securing rights like the 8-hour workday, safe workplaces, and fair wages. In many countries it is a public holiday with marches, rallies, and union events. The day is a reminder that workers' rights — won through decades of struggle — must be continually defended.
History
The date commemorates the Haymarket affair of 1886 in Chicago, where workers striking for an 8-hour workday were met with violence. In 1889, the International Socialist Congress declared May 1 as International Workers' Day. Today it is a public holiday in over 80 countries, though the US and Canada observe Labour Day in September instead.
Where It's Observed
Cultural Context
US United States
The US observes Labour Day in September, not May 1, due to political concerns in the 1880s about associating with the international socialist movement. Nevertheless, May 1 is increasingly observed by labour unions, immigration activists, and progressive movements as International Workers' Day.
KR South Korea
South Korea celebrates Labour Day (근로자의 날) on May 1 as an official public holiday. Major trade unions hold rallies in Seoul and other cities, and the day highlights ongoing debates about minimum wage, gig worker protections, and the 52-hour work week policy.
JP Japan
Japan calls May 1 'Mē Dē' (May Day) and it falls within the Golden Week holiday cluster. Labour unions hold rallies in major cities. Despite being a significant workers' rights day, Golden Week's festive atmosphere sometimes overshadows the political significance.
How to Participate
- 01Learn about the history of a labour right you benefit from today
- 02Support fair-trade and ethically produced goods in your shopping
- 03Attend a local labour movement or workers' rights event
- 04Recognise and thank the essential workers in your community
Frequently asked questions
When is International Workers' Day?+
International Workers' Day is observed annually on May 1. The date is fixed each year — May 1 — and does not shift based on the lunar calendar or weekday.
What is International Workers' Day?+
International Workers' Day — also known as Labour Day or May Day — is celebrated on May 1 as a commemoration of the labour movement and the achievements of workers in securing rights like the 8-hour workday, safe workplaces, and fair wages. In many countries it is a public holiday with marches, rall…
Is International Workers' Day a public holiday?+
International Workers' Day is an international observance or awareness day, not a public holiday in most countries. It does not typically result in days off work or school closures, though some countries and organisations hold official events.
How can I participate in International Workers' Day?+
Learn about the history of a labour right you benefit from today Support fair-trade and ethically produced goods in your shopping Attend a local labour movement or workers' rights event These are some of the most accessible ways to engage with the day's purpose.
Which countries observe International Workers' Day?+
Over 80 countries globally — most of the world.
Mark the date
Download a free printable calendar for 2026 and never miss International Workers' Day.