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At the time it approved this standard, NCITS had the following members: Ms. Karen Higginbottom, NCITS Chairman (Acting) Ms. Karen Higginbottom, NCITS Vice Chairman Ms. Monica Vago, NCITS Secretary AMP Incorporated Mr. John Hill (P) Mr. Charles Brill (A) Apple Computer Inc. Mr. David K. Michael (P) Mr. Jerry Kellenbenz (A) AT&T Mr. Thomas F. Frost (P) Mr. Paul Bartoli (A) Bull HN Information Systems Inc Mr. Patrick L. Harris (P) Compaq Computers Mr. Stephen Heil (P) Mr. Steve Park (A) Digital Equipment Corporation Mr. Scott K. Jameson (P) Mr. Richard Hovey (A) Eastman Kodak Company Mr. Michael Nier (P) Hewlett-Packard Ms. Karen Higginbottom (P) Mr. Donald C. Loughry (A) Hitachi America Ltd. Mr. John Neumann (P) Mr. Kei Yamashita (A) Hughes Aircraft Company Mr. Harold Zebrack (P) IBM Corporation Mr. Ronald Sellitti (P) Mr. Joel Urman (A) Institute for Certification of Computer Professionals (ICCP) Mr. Kenneth Zemrowski (P) Imation Mr. Philip E. Friedlund (P) Lucent Technologies Mr. Herbert Bertine (P) Mr. Tom Rutt (A) National Communications Systems Mr. Dennis Bodson (P) Mr. William Olden (A) Mr. Frank McClelland (A) National Institute of Standards & Technology Mr. Michael D. Hogan (P) Panasonic Technologies Mr. Y. Machida (P) Share Inc. Mr. Gary Ainsworth (P) Mr. David Thewlis (A) Sony Mr. Masataka Ogawa (P) Mr. Michael Deese (A) Storage Technology Corporation Mr. Joseph S. Zajaczkowski (P) Sun Microsystems Inc. Mr. Gary S. Robinson (P) Sybase Inc. Mr. Donald R. Deutsch (P) Texas Instruments Inc. Mr. Clyde Camp (P) Mr. Fritz Whittington (A) Unisys Corporation Mr. Arnold Winkler (P) Mr. Stephen P. Oksala (A) U.S. Department of Defense Mr. Jerry L. Smith (P) Mr. C.J. Pasquariello (A) U.S. Department of Energy Ms. Carol S. Blackston (P) Mr. Bruce R. White (A) Xerox Corporation Mr. John Flannery (P) Mr. Roy Pierce (A) The ANSI NCITS L8 Technical Committee on Data Representation, which developed this standard had the following members: Phong X. Ngo, Chair, Science Applications International Corporation (P) Bruce E. Bargmeyer, Vice Chair, U.S. Environmental Protection Agency (P) Daniel W. Gillman, Special Interest Group Chair, U.S. Bureau of the Census (P) Judith Newton, Special Interest Group Vice Chair, National Institute of Standards and Technology (P) Battelle Memorial Institute……………………………….…………….. Douglas D. Mann (P) Bell Communications Research………………………………………… Paul M. Hawes (P) Paul R. Levine (A) Department of the Army………………………………………………… Bruce Haberkamp (P) Lawrence Berkeley National Laboratory……………………………….. Frank Olken (P) John McCarthy (A) Meta4 Incorporated…………………………………………………….. Revere Perkins (P) William P. Doyle (A) Mitertek Incorporated…………………………………………..……… Andrew M. Schoka (P) National Institute of Standards and Technology……………………….. Bruce K. Rosen (A) Paladin Integration Engineering……………………………………..…. Burton G. Parker (P) San Diego Supercomputer Center…………………………………….. Arcot Rajasekar (P) Science Applications International Corporation……………………..… Joseph Leahy (A) self……………………………………………………………..………. Henry Heffernan self……………………………………………………………………… William H. Kenworthey, Jr. (O) Space Applications Corporation……………………….………………. Peter D. Noerdlinger (O) U.S. Bureau of the Census………………………………………….….. Martin V. Appel (A) William P. LaPlant (O) U.S. Environmental Protection Agency……………………………..….. Larry Fitzwater (A) U.S. Geological Survey…………………………………………….…… Roger L. Payne (P) Louis A. Yost IV (A) U.S. Naval Observatory…………………………………..…………….. Brent A. Archinal (O) U.S. Veterans Administration……………………………………….….. Philip H. Diamond (P) University of South Carolina, Dept of Electronic & Computer Eng……. Michael N. Huhns (P) Larry M. Stephens (A) 1 Scope, purpose, and application 1.1 Scope The scope of this American National Standard is limited to the representation of calendar date for interchange among data systems; it does not describe how the date is determined. This standard was not designed for (nor does it preclude) usage by humans as input to, or output from data systems. This standard does not address how data is converted by data systems to be internally processed and/or stored. 1.2 Purpose The purpose of the American National Standard is to provide a single standard means of representing calendar date for interchange of dates among data systems. 1.3 Application The representation of calendar date specified in this standard is compatible with other national and international standards. In ISO 8601:1988, the representation specified by this American National Standard is referred to as calendar date-complete representation-basic format, except that the notation YYYY is used instead of CCYY. 2 Normative references The following standard contains provisions that, through reference in this text, constitute provisions of this American National Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this American National standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Copies of the following documents can be obtained from ANSI: Approved ANSI standards, approved and draft international standards (ISO, IEC, CEN/CENELEC), and approved foreign standards (including BSI, JIS, and DIN). For further information, contact ANSI Customer Service Department at 212-642-4900 (phone), 212-302-1286 (fax) or via the World Wide Web at http://www.ansi.org. ISO 8601: 1988, Data elements and interchange formats -- Information interchange -- Representation of dates and times. 3. Definitions For this American National Standard, the following definitions apply: 3.1 calendar date: A particular year, month, and day of the Gregorian calendar. 3.2 calendar day: A particular day within a Gregorian calendar month. 3.3 calendar month: A particular month within a Gregorian calendar year. 3.4 calendar year: A particular year according to the Gregorian calendar. 3.5 Gregorian calendar: A calendar introduced in the year 1582 AD and now in general use. 4 Specifications 4.1 The calendar date shall be represented by eight numeric characters. The calendar date shall be represented in the order of calendar year (YYYY), calendar month (MM), and calendar day (DD). No characters may be added or omitted. 4.2 The allowed values for calendar year are "0001" through "9999". Calendar year is presumed to be anno Domini (A.D.), or Common Era (CE), unless otherwise specified. 4.3 The allowed values for calendar month are "01" through "12", with a leading zero where the number representing the month has only one digit. January is represented by the ordinal number "01", and subsequent months are numbered in ascending sequence from "02" to "12". 4.4 The allowed values for calendar day are "01" through "31", depending on the number of days in a calendar month, with a leading zero where the number representing the day has only one digit. The first day of the month is represented by the ordinal number "01", and subsequent days are numbered in ascending sequence from "02" to the end of the month. 5 Example The fourth day of July in the year 1776 is represented as "17760704". 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