Calendar pack · Days to remember · Worldwide

Universal dates

Sourced days to remember dates for Worldwide. Download a calendar file or subscribe for updates.

Technical details

Dates with one cited rule that is the same everywhere. Always included with a calendar pack.

v1 · Updated 17 Oct 2026 | 11 dates · Updated 17 Oct 2026

Fixed Gregorian dates and nth-weekday rules from the qualified date engine, emitted once with no year. Country variants and the UK bank-holiday pack are not in this pack.

PublicSources: Church of England: the Calendar (Common Worship); Gregorian calendar (fixed civil dates); International Labour Organization: May Day; United Nations: list of international days and weeks; World Health Organization: World Health Day

Get this pack

App coming soon. Use the calendar file now, or get a launch notice.

Calendar file (.ics)One-time import into Google Calendar, Apple Calendar or Outlook.

Download .ics

WhatDate pack (.whatdate)Best on Android: reminders before each date, notes, and updates when the pack changes.

App coming soon

Subscribe link (webcal)Your calendar app checks for changes and keeps the dates current.

How to import

WhatDate: tap “Get in WhatDate” on your phone. The app opens and asks before adding anything.
Google Calendar: Settings › Import, then choose the .ics file. Or subscribe to keep it current.
Apple Calendar or Outlook: open the .ics file, or add the subscription link.

Dates in this pack

In WhatDate every date from this pack is tagged universal, so you can find it, or remove the whole pack, from the Tags tab.

Date	Name	Note
Every year on 1 January	New Year's Day	The first day of the Gregorian year. One of many new years - Ugadi, Nowruz and Rosh Hashanah each open a different reckoning. · Worldwide
Every year on 8 March	International Women's Day	A United Nations observance. · Worldwide
Every year on 7 April	World Health Day	Marks the founding of the World Health Organization. · Worldwide
Every year on 1 May	International Workers' Day	Labour Day in much of the world. The United States keeps its own Labor Day in September instead. · Worldwide
Every year on 5 June	World Environment Day	A United Nations environmental observance. · Worldwide
Every year on 21 June	International Day of Yoga	A United Nations observance held at the June solstice. · Worldwide
Every year on 2 October	International Day of Non-Violence	A United Nations observance held on Gandhi's birth anniversary. · Worldwide
Every year on 24 October	United Nations Day	Marks the entry into force of the UN Charter in 1945. · Worldwide
Every year on 10 December	Human Rights Day	Marks the adoption of the Universal Declaration of Human Rights in 1948. · Worldwide
Every year on 25 December	Christmas Day	Fixed at 25 December in the Gregorian calendar. Churches on the Julian calendar keep the same fixed date in their own reckoning, which currently renders as 7 January. · Worldwide
Every year on 31 December	New Year's Eve	The last day of the Gregorian year. · Worldwide

All 11 dates.

Sources

Fixed Gregorian dates and nth-weekday rules from the qualified date engine, emitted once with no year. Country variants and the UK bank-holiday pack are not in this pack.

Church of England: the Calendar (Common Worship) · retrieved 15 September 2026, reviewed 15 September 2026Calendar fact cited by URL; no liturgical text copied.
Gregorian calendar (fixed civil dates) · retrieved 15 September 2026, reviewed 15 September 2026Independent factual calendar reference; no source content copied.
International Labour Organization: May Day · retrieved 15 September 2026, reviewed 15 September 2026ILO factual observance-date citation.
United Nations: list of international days and weeks · retrieved 15 September 2026, reviewed 15 September 2026United Nations factual observance-date citation.
World Health Organization: World Health Day · retrieved 15 September 2026, reviewed 15 September 2026WHO factual observance-date citation.