January 2
Let an agent handle January 2 as a calendar date with weekday computation, observances and sourced events.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Date Calendar facts.
Weekday
Computation.
Weekday
Weekday.
- On which weekday does January 2 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.
Holiday
Public holiday.
Holiday
Holiday status.
- Is January 2 a public holiday here? provenance
- What substitute rules apply at weekends? provenance
Closures
Services.
Closures
Closures.
- Which services are closed or reduced? provenance
- Where can emergency help be found? action
History Past events.
Events
On this day.
Events
Historical events.
- Which notable events happened on January 2, according to reliable sources? provenance
- Are dates in the same calendar? boundary
Anniversaries
Recurring.
Anniversaries
Anniversaries.
- Which anniversaries fall on this date this year? provenance
- Which are round numbers? measurement
Planning Scheduling.
Countdown
Days until.
Countdown
Countdown.
- How many days until the next January 2? measurement
- From which date? definition
Work
Return to work.
Work
Working day.
- Is it a working day for this organisation? provenance
- Do deadlines move? boundary
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.TME
What it is Filled
The second day of the year in the Gregorian calendar, with 363 days remaining (364 in leap years); a public holiday in some places, for example as an extra New Year holiday in Scotland and New Zealand.
Why it exists Filled
Let an agent handle January 2 as a calendar date with weekday computation, observances and sourced events.
Distinguishing features Filled
- Second day of the year
- Extra New Year holiday in some places
- Weekday varies by year
- Often a return-to-work day elsewhere
What robots and AI may and may not do Filled
Must not
- Claim it is a public holiday where it is not, or the reverse.
- Schedule work or contact on a local public holiday without regard to local rules.
Only with a human decision
- Scheduling shifts or deadlines on this date where it is a holiday.
May
- Give the date's calendar facts and observances.
- State where it is a public holiday, with the source.
Moral aspects Filled
- Holiday rules differ by place; errors affect pay and rest.
- Not everyone follows the Gregorian new year.
Who is affected
- Workers
- Employers
Owners Filled
Steward
Nobody owns a date; governments declare public holidays.
Links to other meta-models Filled
parent
- Q11187508 - registry parent class
related
- January - month
- January 1 - date
- calendar date - category
- ISO 8601 - notation
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.january-2
- Wikidata: Q2151 (https://www.wikidata.org/wiki/Q2151)
- ISO 8601: --01-02 recurring date
Direct properties not applicable Not applicable
- day of year: 2 day
- days remaining: 363 or 364 days - common or leap year
Plane XCT: no invented physical properties.
Recognition optional Filled
- Written 2 January or January 2
- ISO format --01-02
- Holiday status varies by country
- A date on calendars.
Capabilities and actions required Filled
- compute its weekday in a given year
- check whether it is a holiday locally
- find sourced historical events
- schedule events
Hazards and failure modes required Filled
- Assuming it is a holiday everywhere
- Unsourced on-this-day events
Standards and interfaces required Filled
- ISO 8601
- National public holiday laws
Context of use required Filled
- A calendar date for scheduling, holidays and anniversaries.
- the recurring calendar date
- specific dated days in given years
Sources Filled
- Wikidata item Q2151: January 2 - identity and sense of the item
- Wikipedia: January 2 - general description of the item
Open questions
- Should dated days be separate entries?
- How should regional holidays be linked?
- How should events be sourced?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q2151/spec.json