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Daytime Protocol (RFC0867)

IP.com Disclosure Number: IPCOM000003915D
Original Publication Date: 1983-May-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 2 page(s) / 2K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Postel: AUTHOR

Abstract

This RFC specifies a standard for the ARPA Internet community. Hosts on the ARPA Internet that choose to implement a Daytime Protocol are expected to adopt and implement this standard.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 100% of the total text.

Network Working Group J. Postel

Request for Comments: 867 ISI

May 1983

Daytime Protocol

This RFC specifies a standard for the ARPA Internet community. Hosts on

the ARPA Internet that choose to implement a Daytime Protocol are

expected to adopt and implement this standard.

A useful debugging and measurement tool is a daytime service. A daytime

service simply sends a the current date and time as a character string

without regard to the input.

TCP Based Daytime Service

One daytime service is defined as a connection based application on

TCP. A server listens for TCP connections on TCP port 13. Once a

connection is established the current date and time is sent out the

connection as a ascii character string (and any data received is

thrown away). The service closes the connection after sending the

quote.

UDP Based Daytime Service

Another daytime service service is defined as a datagram based

application on UDP. A server listens for UDP datagrams on UDP port

13. When a datagram is received, an answering datagram is sent

containing the current date and time as a ASCII character string (the

data in the received datagram is ignored).

Daytime Syntax

There is no specific syntax for the daytime. It is recommended that

it be limited to the ASCII printing characters, space, carriage

return, and line feed. The daytime should be just one line.

One popular syntax is:

Weekday, Month Day, Year Time-Zone

Example:

Tuesday, February 22, 1982 17:37:43-PST

RFC 867 May 1983

Daytime Protocol

Another popular syntax is that used in SMTP:

dd mmm yy hh:mm:ss zzz

Example:

02 FEB 82 07:59:01 PST

NOTE: For machine useful time use the Time Protocol (RFC-868).