World Statistics Day
United Nations General Assembly resolutions 64/267 and 69/282
United Nations General Assembly resolutions 64/267 and 69/282
The date is source-dependent or variable. A target-year source is required before assigning it to a calendar. Public-holiday or government status is never inferred from the observance name alone.
Overview
World Statistics Day is a United Nations observance held on 20 October every five years to recognize the importance of reliable official statistics for public decision-making.
Unlike most international days in this authority base, it is not annual. The General Assembly decided in 2015 that World Statistics Day should be celebrated every five years on 20 October.
Why it matters
Official statistics help governments, researchers, communities and the public understand conditions and measure change. Their usefulness depends not just on producing numbers, but on professional standards, integrity, comparability and public trust.
The observance should not be used to imply that every statistic is equally reliable. Data quality depends on definitions, collection methods, coverage, revisions, uncertainty and appropriate interpretation.
History
The UN Statistical Commission proposed celebrating 20 October 2010 as World Statistics Day through decision 41/109. The General Assembly then adopted A/RES/64/267 on 3 June 2010, designating 20 October 2010 as the first World Statistics Day.
On 3 June 2015, the General Assembly adopted A/RES/69/282, designating the second World Statistics Day for 20 October 2015 and deciding that the observance would recur every five years on 20 October.
How the observance developed
This timeline is assembled only from verified provenance fields. Missing stages are omitted rather than inferred.
United Nations Statistical Commission
The UN states that the Statistical Commission proposed celebrating 20 October 2010 as World Statistics Day through decision 41/109.
United Nations General Assembly
UN General Assembly resolution A/RES/64/267
First documented observance
A/RES/64/267 designated 20 October 2010 as the first World Statistics Day, and UNSD records the first celebration on that date.
Changed World Statistics Day from individually designated editions into a recurring observance celebrated every five years on 20 October.
United Nations General Assembly · A/RES/69/282
United Nations Statistics Division (UNSD)
UNSD maintains the World Statistics Day programme, coordination contact and official observance resources.
What the evidence establishes
Verified institutional roles and milestones are shown first. Fields that the reviewed sources do not establish remain fail-closed and are available below without competing with the confirmed record.
3 fields not established in reviewed sources
Later institutional actions
Later recognition, renaming, mergers or date changes are kept separate from original establishment.
Ways to observe
Choose a public dataset and read its methodology before interpreting the headline numbers.
Compare how two official statistical agencies define the same indicator and note any differences in population, period or measurement.
Practice turning a chart into a plain-language explanation that includes uncertainty and avoids overstating causation.
Learn how official statistics are revised and why a later estimate may legitimately differ from an earlier release.
Useful facts
World Statistics Day falls on 20 October in designated five-year cycles, not every year.
The first World Statistics Day was 20 October 2010.
A/RES/64/267 established the first observance and was adopted on 3 June 2010.
A/RES/69/282 established the every-five-years recurrence in 2015.
The UN Statistical Commission originally proposed the 2010 observance through decision 41/109.
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
- Refresh the target year before publishing a new date when the record is not safely portable.
Evidence & sources
Repeated links from the authority record, institutional provenance and editorial guide research are consolidated here. Badges show how each source is used; a contextual source is never treated as proof of establishment on its own.
United Nations Digital Library — A/RES/64/267 (opens in a new tab)
United Nations Statistics Division — World Statistics Day 2020 history (opens in a new tab)
United Nations — World Statistics Day (opens in a new tab)
Un Resolution
Understand it, compare it, then explore further
Start with the most common factual questions, then use reviewed distinctions and related authority records to understand where this observance fits.
Frequently asked questions
When is World Statistics Day?
20 October every five years The stored recurrence guidance is: 20 October every five years; check whether the target year is an observance year.
Does World Statistics Day fall on the same date every year?
It is not safely predictable from a fixed rule; the target year needs a current source.
Is World Statistics Day an official public holiday?
The authority record verifies it within this scope: United Nations international statistics observance. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when the supporting authority record explicitly does so.
Who established or recognizes World Statistics Day?
The reviewed provenance layer identifies United Nations General Assembly as the proclaiming or establishing body. The proposer or originator is recorded separately as United Nations Statistical Commission. Current facilitation or coordination is recorded as United Nations Statistics Division (UNSD).
Is World Statistics Day international or country-specific?
The record has international or global institutional scope: United Nations international statistics observance. That does not mean every country treats the date as a public holiday or observes it in the same way.
How is this page verified?
The factual layer is source-backed and keeps its date rule, scope, provenance and editorial guardrails attached to the authority record. This record was checked on 2026-09-05.
Is World Statistics Day every year?
No. The UN General Assembly decided that it should be celebrated every five years on 20 October.
When was the first World Statistics Day?
The first World Statistics Day was held on 20 October 2010.
Why can’t this site automatically show it every 20 October?
Because the official rule is a five-year cycle rather than an annual recurrence. The authority engine therefore treats it as a custom rule and resolves only supported observance years.