CACrown ArchivesThe cinema collection
EN/FR
Search
Menu
Research dossier · General Reference

Daytime Protocol

computer text protocol for viewing clock time

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionOct 18, 2025
Entity authorityQ1179179 ↗
Source-derived summary

The Daytime Protocol is a service in the Internet Protocol Suite defined in 1983 in RFC 867 by Jon Postel. It is intended for testing and measurement purposes in computer networks.

A host may connect to a server that supports the Daytime Protocol on either Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) port 13. The server returns an ASCII character string of the current date and time in an unspecified format.

Inetd implementation

On UNIX-like operating systems, a daytime server is usually built into the inetd (or xinetd) daemon. The service is usually not enabled by default.

Editorial summary

“Daytime Protocol” enters the record as computer text protocol for viewing clock time. Crown Archives preserves that source wording while asking what Daytime, Protocol and computer can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1983—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Daytime, Protocol and computer.
Editorial analysis

Why this record matters

“Daytime Protocol” is worth following because a concise public description often conceals a longer documentary argument. Here, Daytime, Protocol and computer provides the most credible route into that argument.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Oct 18, 2025. The linked authority identifier is Q1179179. The first chronological checks are 1983.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Daytime Protocol”, its source revision and the description used here.
  2. Expand the search: follow Daytime Protocol primary sources, Daytime Protocol archive and Daytime research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Daytime Protocol”?
  2. Which cited source is closest to the event, object or claim?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Daytime Protocol” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.