Daytime Protocol
E728193
Daytime Protocol is a simple, text-based internet service defined in RFC 866 that returns the current date and time to clients connecting to a designated port.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Daytime Protocol canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T8367701 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Daytime Protocol Context triple: [RFC 866, title, Daytime Protocol]
-
A.
Daytime Prayer
Daytime Prayer is one of the fixed daily prayer times in the Christian Liturgy of the Hours, traditionally recited in the middle of the day to sanctify the hours of work.
-
B.
Canonical Hours
Canonical Hours are the fixed times of daily prayer that structure the liturgical day in Christian traditions, especially within monastic and clerical practice.
-
C.
Morning and Evening
Morning and Evening is a classic daily devotional by Charles Spurgeon, offering Scripture-based reflections for both the start and close of each day.
-
D.
Daylight
Daylight is a 1996 disaster thriller film starring Sylvester Stallone, centered on a group of survivors trapped in a collapsed tunnel beneath the Hudson River.
-
E.
Daytime Hustler
"Daytime Hustler" is a song by Bette Midler from her debut album "The Divine Miss M," showcasing her brassy, theatrical pop style.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Daytime Protocol Target entity description: Daytime Protocol is a simple, text-based internet service defined in RFC 866 that returns the current date and time to clients connecting to a designated port.
-
A.
Daytime Prayer
Daytime Prayer is one of the fixed daily prayer times in the Christian Liturgy of the Hours, traditionally recited in the middle of the day to sanctify the hours of work.
-
B.
Canonical Hours
Canonical Hours are the fixed times of daily prayer that structure the liturgical day in Christian traditions, especially within monastic and clerical practice.
-
C.
Morning and Evening
Morning and Evening is a classic daily devotional by Charles Spurgeon, offering Scripture-based reflections for both the start and close of each day.
-
D.
Daylight
Daylight is a 1996 disaster thriller film starring Sylvester Stallone, centered on a group of survivors trapped in a collapsed tunnel beneath the Hudson River.
-
E.
Daytime Hustler
"Daytime Hustler" is a song by Bette Midler from her debut album "The Divine Miss M," showcasing her brassy, theatrical pop style.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
application layer protocol
ⓘ
internet protocol ⓘ |
| authentication | not supported ⓘ |
| category | time synchronization and reporting protocol ⓘ |
| clientRole | connects to port 13 and reads response ⓘ |
| connectionClosure | server closes connection after sending time string ⓘ |
| connectionDirection | client initiates connection to server ⓘ |
| connectionModel | client-server ⓘ |
| dataFlow | server-to-client only ⓘ |
| defaultTCPPort | 13 ⓘ |
| defaultUDPPort | 13 ⓘ |
| definedInRFC | RFC 866 ⓘ |
| designedFor | testing and measurement of time services ⓘ |
| encryption | not supported ⓘ |
| hasStandardPort | 13 ⓘ |
| IANAServiceName | daytime ⓘ |
| interoperabilityRequirement | clients must handle arbitrary human-readable time formats ⓘ |
| introducedIn | RFC 866 (1983) ⓘ |
| isTextBased | true ⓘ |
| layer | application layer ⓘ |
| modernUsage | rare ⓘ |
| portAssignmentAuthority | IANA ⓘ |
| protocolNumber | RFC 866 ⓘ |
| relatedProtocol |
Network Time Protocol
ⓘ
Time Protocol ⓘ |
| reliabilityWithTCP | reliable delivery of time string ⓘ |
| reliabilityWithUDP | unreliable, best-effort delivery ⓘ |
| requiresClientRequestData | false ⓘ |
| responseFormat | implementation-dependent human-readable date and time ⓘ |
| returns | current date and time ⓘ |
| securityFeatures | none ⓘ |
| serverRole | returns a human-readable date and time string ⓘ |
| serviceType | time reporting service ⓘ |
| simplicity | stateless, single-line response ⓘ |
| standardBody |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| status | historic ⓘ |
| supersededBy |
Network Time Protocol
ⓘ
more secure time synchronization mechanisms ⓘ |
| supportsMultipleResponsesPerConnection | false ⓘ |
| transportProtocol |
TCP
ⓘ
linked to:
Transmission Control Protocol
UDP ⓘ |
| triggerForResponse | successful connection to port 13 ⓘ |
| typicalImplementation | simple daemon on TCP/UDP port 13 ⓘ |
| useCase |
diagnostic testing of network connectivity
ⓘ
simple time query ⓘ |
| usesCharacterEncoding | ASCII ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Daytime Protocol Description of subject: Daytime Protocol is a simple, text-based internet service defined in RFC 866 that returns the current date and time to clients connecting to a designated port.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.