TempoLife › Features › Birthdays by the numbers
Birthdays by the numbers
Birthdays by the numbers: this guide has a section for each calendar date: how common that birthday is in each country and where it ranks among the 366, the…
This launch guide maps the topic, the source base and the practical questions. Check the linked official authority before acting on a rule, deadline, price or safety requirement.
What this guide covers
This guide has a section for each calendar date: how common that birthday is in each country and where it ranks among the 366, the weekday you were born on, the name day and observances that share it, and the statistics behind the clusters — the late September peak, the 1 January registration artefact, the dip on Christmas Day, and the several ways 29 February is rare. A birthday-paradox table and a "how many people share it" figure close Each section. A focused example is "born on 12 October".
How to use it
Use Birthdays by the numbers to compare stable place facts and official facilities. Live opening, access and disruption information should always be confirmed with the operator before travel.
The page keeps the main question, its evidence base and its limits together in one canonical place. That makes it useful as a quick orientation and avoids splitting a broad subject into shallow pages before each narrower answer has enough verified material of its own.
Search vocabulary in four languages
Terminology changes across borders. These are example phrases people use for the same subject in Estonian, Finnish, Russian and English; they are included as a practical vocabulary aid, not as hidden keywords.
| Language | Example phrase |
|---|---|
| Estonian | kõige levinum sünnipäev |
| Finnish | yleisin syntymäpäivä Suomessa |
| Russian | самый частый день рождения |
| English | most common birthday date |
Evidence and provenance
The evidence map below records the primary, official or openly licensed material chosen for this guide. It is deliberately visible so a reader can tell the difference between a rule published by an authority, a measured dataset and an editorial explanation.
Source: births by day and month published by Statistics Estonia, Statistics Finland (StatFin, CC BY 4.0) and Latvia's CSP; where only monthly counts are open the page says so and shows the month. · checked 2026-09-09
Source names are preserved even where an authority changes its web address. No figure is added to this launch page unless it is already present in the cited source description or can be computed from a named dataset.
Scope and boundaries
the /utilities age calculator does date arithmetic; this is the statistics of the date itself.
Connected TempoLife guides
The following paths are the intentional hand-offs named in the brief. They keep adjacent subjects separate while making the next useful reference easy to find.
Why it belongs on TempoLife
/name-days.
Frequently asked questions
What does this guide cover?
This guide has a section for each calendar date: how common that birthday is in each country and where it ranks among the 366, the weekday you were born on, the name day and observances that share it, and the statistics behind the clusters — the late September peak, the 1 January registration artefact, the dip on Christmas Day, and the several ways 29 February is rare. A birthday-paradox table and a "how many people share it" figure close Each section. A focused example is "born on 12 October".
What evidence does it use?
births by day and month published by Statistics Estonia, Statistics Finland (StatFin, CC BY 4.0) and Latvia's CSP; where only monthly counts are open the page says so and shows the month.
Where does this guide stop?
the /utilities age calculator does date arithmetic; this is the statistics of the date itself.
Turn the reference into a routine
TempoLife brings food, movement, sleep and everyday health habits into one private place when you want to track what happens next.