International Tea Day is a global observance that celebrates tea and honours the millions of people who grow, pick, and process it. Here is the twist that trips people up: there are actually two of them. The United Nations International Tea Day falls on May 21, while an older, grassroots tea day organised by tea-producing countries has been marked on December 15 since 2005. Both share the same spirit, so which one you toast to mostly depends on where you look.
This guide untangles the two dates, explains who backs each and why the day exists at all, and finishes with simple ways to celebrate anywhere in the world. For the drinks themselves, we point you to our deeper guides along the way.
The two dates of International Tea Day
The confusion is real and easy to fix. There are two tea days on the calendar, born at different times for slightly different reasons.
The United Nations International Tea Day is the official one. The UN General Assembly adopted a resolution in late 2019 designating 21 May as International Tea Day, and it was first observed on 21 May 2020. The date was chosen to line up with the start of the tea-harvest season in many major producing countries. The UN's Food and Agriculture Organization (FAO) leads the observance. Because it is the newest and most widely publicised version, many people now use the loose name world tea day to mean this May date.
The original International Tea Day came first. Since 2005, trade unions and small-grower organisations in tea-producing nations have marked 15 December as a day to spotlight the working conditions and fair-trade concerns of the people behind the cup. It began as a labour-rights initiative rather than a government holiday, and it is still observed in several producing countries. So when someone talks about tea days in the plural, this is usually the second one they mean.
| Which day | Date | Backed by | Main focus |
|---|---|---|---|
| UN International Tea Day | May 21 | United Nations, led by the FAO (from 2020) | Global awareness, sustainable trade, tea's cultural and economic value |
| Original International Tea Day | December 15 | Tea-producing countries, trade unions and smallholder groups (from 2005) | Workers' rights, fair prices, the livelihoods behind production |
In short: May 21 is the official UN observance; December 15 is the older, producer-led one. They do not compete so much as bookend the year with the same message.
Why International Tea Day exists
Tea is the most consumed drink in the world after water, and behind that simple fact sits an enormous human story. International Tea Day exists to make that story visible on days when most of us only see the finished cup.
Culture and history
Tea has been grown and enjoyed for thousands of years, and almost every tea-drinking region has built its own rituals around it, from the Japanese Way of Tea to the strong, milky brews of Ireland and South Asia. The day is a chance to appreciate that heritage and to explore beyond your usual bag or leaf. If you want a map of what is out there, our guide to the types of tea explained is a good starting point.
Livelihoods and the people behind the cup
The heart of both tea days is economic. Tea is a lifeline for millions of families, many of them in lower-income, tea-growing countries. Smallholder farmers, a large share of whom are women, produce a significant portion of the world's tea, yet they often face low farm-gate prices, limited market access, and thin margins. The day draws attention to fair wages, safer working conditions, and support for the growers and pickers who make the industry run. This is why the December 15 observance grew out of trade unions in the first place, and why the FAO frames May 21 around sustainable, inclusive livelihoods.
Sustainability and trade
Tea is a climate-sensitive crop. Shifting rainfall and temperatures affect where and how well tea can be grown, which in turn affects the people who depend on it. International Tea Day also promotes sustainable production, responsible sourcing, and consumer awareness of where tea comes from. To see how a plantation actually works, from bush to processing shed, read our explainer on the tea garden.
How the day is marked around the world
Because it is a global observance and not a national holiday, International Tea Day looks different from place to place. There is no single official ritual, which is part of the charm.
- Institutions and events. The FAO and partner organisations hold talks, reports, and awareness campaigns on the state of the tea sector, often focused on smallholders and sustainability.
- Producing regions. In tea-growing countries, unions, cooperatives, and estates use the day to highlight workers' issues and to showcase local specialities and craft.
- Tea rooms and cafes. Independent shops and tea houses run tastings, discounts on loose leaf, or brewing demonstrations to introduce customers to new styles.
- Online and community. Enthusiasts, brands, and writers share brewing tips, origin stories, and photos, so the day has a lively life on social feeds and community forums.
You will also see the day used, gently, as a marketing moment by tea companies. That is fine, but the more meaningful side is the attention it brings to the people and places behind the leaf.
How to celebrate International Tea Day anywhere
You do not need a ceremony or a special kit to take part. Pick whichever of these fits your day, whether it is May, December, or any afternoon you fancy a proper brew.
- Brew your favourite properly. Use fresh, well-heated water, the right amount of leaf, and a sensible steep time. A black tea likes near-boiling water and three to five minutes; delicate greens prefer cooler water, around 70 to 80 C, and a shorter steep.
- Try something new. If you always reach for a builder's brew, taste an oolong, a roasted hojicha, or a herbal infusion instead. Widening your palate is the easiest way to honour the day.
- Learn where your tea grows. Turn the packet over and look up the origin. Knowing whether your leaf came from a highland estate or a smallholder plot makes the next cup taste different, in a good way.
- Buy with a conscience. Look for fair-trade or transparent-sourcing labels, which tie directly to the livelihoods the day is about.
- Share the pot. Tea is social almost everywhere it is drunk. Brew a full pot and pull someone into a slow conversation.
Tea day, coffee day, and how they fit together
International Tea Day has a close cousin: International Coffee Day, held on October 1. Both were created to celebrate a beloved drink and, more importantly, to shine a light on the growers and workers who supply it. If you enjoy comparing the two worlds, from caffeine to culture to how each is farmed, our coffee vs tea comparison lays them side by side.
Whichever date you keep, the point of International Tea Day is the same: to slow down over a cup you might otherwise take for granted, and to remember the long chain of hands that put it there. Brew something you love on May 21, mark December 15 if the producer-led tradition speaks to you, and treat any quiet afternoon as reason enough for a good pot. The best way to celebrate tea is, reliably, to drink it well.