June 1
Let an agent handle June 1 as a calendar date with day number, weekday computation, observances and sourced events.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent handle June 1 as a calendar date with day number, weekday computation, observances and sourced events.
The 152nd day of the year in the Gregorian calendar (153rd in leap years), with 213 days remaining; observed in many countries as International Children Day and marking the start of meteorological summer in the Northern Hemisphere.
What it is for: A calendar date for scheduling, anniversaries and observances.
It can be compute its weekday in a given year; list observances; find sourced historical events; schedule events.
Distinguishing features
First day of June
Meteorological summer start (Northern Hemisphere)
Children Day in many countries
Weekday varies by year
What it looks like
A date on calendars.
Physical character
day of year: 152 or 153 day - common or leap year
days remaining: 213 days
How it is recognised
Written 1 June or June 1
ISO format --06-01
Specific years such as June 1, 1937 are separate
Related models
is part of - month
is a kind of - category
is observed as - observance
is expressed in - notation
In practice
Families and kinds
the recurring calendar date
specific dated days in given years
Identifiers
ISO 8601 --06-01 recurring date
Standards and regulation
ISO 8601
National public holiday laws
Failure modes and hazards
Day-month order confusion
Unsourced on-this-day events
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Date Calendar facts.
Calendar arithmetic.
Weekday
Computation.
Weekday
Weekday.
- On which weekday does June 1 fall in this year? measurement
- Is it a leap year? boundary
Format
Notation.
Format
Date format.
- How should the date be written for this audience? action
- Is ISO format needed? boundary
Observances Holidays.
Many countries mark the date.
Children Day
Observance.
Children
Children Day.
- Which countries observe Children Day on June 1? provenance
- Is it a public holiday there? provenance
Other observances
Holidays.
Other
Other observances.
- Which other observances fall on this date? provenance
- From which official calendar? provenance
History Past events.
Events need sources.
Events
On this day.
Events
Historical events.
- Which notable events happened on this date, according to reliable sources? provenance
- Are dates in the same calendar? boundary
Seasons
Meteorological summer.
Seasons
Seasons.
- Why does meteorological summer start on June 1? definition
- How does it differ from astronomical summer? definition
Planning Scheduling.
Dates drive plans.
Countdown
Days until.
Countdown
Countdown.
- How many days until the next June 1? measurement
- From which date? definition
Anniversaries
Recurring.
Anniversaries
Anniversaries.
- Which anniversaries fall on this date this year? provenance
- Which are round numbers? measurement
What the second pass must settle
- Should dated days be separate entries?
- How should observances be linked?
- How should events be sourced?