Published
Sunday
vr.tr.sunday · thing-q132
Let an agent handle Sunday as a weekday with numbering conventions, legal rules on trading and work, and religious significance.
Thing Registry Cross-cutting context XCT.TME
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Calendar Position and numbering.
Position
First or last day.
Position
Position in the week.
- Is Sunday the first or last day of the week in this context? definition
- Which convention does the software use? boundary
Date
Which Sunday.
Date
The specific Sunday.
- Which calendar date is meant? definition
- Is it a named Sunday? definition
Rules Trading and work.
Trading
Shop hours.
Trading rules
Rules on trading.
- Are shops allowed to open on Sunday here, and for how long? boundary
- Which exemptions apply? boundary
Work
Rest-day rules.
Work rules
Rules on Sunday work.
- What rights do workers have about Sunday work? boundary
- Is extra pay required? boundary
Religion and culture Observance.
Worship
Services.
Observance
Religious observance.
- How is Sunday observed in this tradition? definition
- Which named Sundays fall this year? measurement
Customs
Social customs.
Customs
Customs and leisure.
- What customs are associated with Sunday here? definition
- How are they changing? measurement
Deadlines Sunday and time limits.
Rule
Deadline extension.
Deadline rule
How deadlines are treated.
- Does a deadline falling on Sunday move to Monday here? boundary
- Under which rule? provenance
Services
What is open.
Services
Services available.
- Which public services operate on Sunday? definition
- Where can urgent help be found? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.TME
- Other names and narrower kinds
- Lord's Day, Tulip Sunday, Sunday nearest to November 11, June 7, 1914, 5 January 1800, March 12, 1837, June 14, 1914, 25 August 1816, September 12, 1897, September 22, 1907, November 6, 1836, December 25, 1927
What it is Filled
The day of the week between Saturday and Monday, the first day of the week in some calendars and the last in ISO 8601; a day of rest and worship in many Christian traditions.
Why it exists Filled
Let an agent handle Sunday as a weekday with numbering conventions, legal rules on trading and work, and religious significance.
Distinguishing features Filled
- Day 7 in ISO weeks, day 1 in some other conventions
- Rest day in many countries, with trading laws
- Christian day of worship
- Named Sundays mark feasts and commemorations
What robots and AI may and may not do Filled
Must not
- Assume Sunday is the first or last day of the week without checking the calendar convention in use.
- Book work, deliveries or noise on a Sunday where law or the affected people's observance forbids it.
- Assume everyone observes Sunday as a religious day.
Only with a human decision
- Requiring someone to work on a Sunday against their religious observance.
May
- Calculate and convert Sundays across calendars and week-numbering systems.
- Schedule events while noting whether a Sunday is a rest day, worship day or working day for the people involved.
Moral aspects Filled
- Sunday rest has religious and labour significance that schedules can override.
- Week-start mismatches cause off-by-one errors in rotas and contracts.
Who is affected
- Workers
- Worshippers
- Schedulers
Owners Filled
Steward
Nobody: a calendar day held in common.
Links to other meta-models Filled
parent
- Q1445650 - registry parent class
- Q573 - registry parent class
related
- day - weekday
- week - seven days
- holiday or rest day - in many places
- Sunday trading law - shop hours
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.sunday
- Wikidata: Q132 (https://www.wikidata.org/wiki/Q132)
- ISO 8601 weekday number: 7 Monday is 1
Direct properties not applicable Not applicable
Not applicable
Plane XCT: no invented physical properties.
Recognition optional Filled
- Calendar position after Saturday
- ISO 8601 day number 7
- Named Sundays such as Easter Sunday or Remembrance Sunday
- Not a thing to see; a day on the calendar.
Capabilities and actions required Filled
- schedule around it
- observe it religiously
- regulate trading and work on it
- number it, as day 7 in ISO 8601
Hazards and failure modes required Filled
- Week-start mismatch in software
- Assuming shops are open or closed without checking local law
- Deadlines falling on Sundays
Standards and interfaces required Filled
- ISO 8601
- Sunday trading laws
- Working time law on rest days
Context of use required Filled
- Rest, worship, family and leisure in many societies.
- ordinary Sundays
- named Sundays such as Easter Sunday, Palm Sunday, Remembrance Sunday
Sources Filled
- Wikidata item Q132: Sunday - identity and sense of the item
- Wikipedia: Sunday - general description of the item
Open questions
- Should weekdays be separate entries?
- How should named Sundays be linked?
- The registry entry has merged aliases with specific dates; should they be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q132/spec.json