About site: Time - International Standard Date and Time Notation
Return to Reference also Reference
  About site: http://www.cl.cam.ac.uk/~mgk25/iso-time.html

Title: Time - International Standard Date and Time Notation An overview of the ISO 8601 notation for dates.
\"Orologio\"_at_the_St__Mark\'s_Square_Tower,_Venice_-_Antica_Orologeria_Zamberlan Website of Antica Orologeria Zamberlan, Italy. Extensive technical and historical explanation of the restoration and controversy of the "Orologio" Tower at St. Mark's Square, Venice.

Spineless_Wonders Specializes in the creation of butterfly houses and insect zoos for public and private institutions. Examples, consulting, supplier of both adult butterflies and pupa, gallery, and company info. Locat

International_Network_for_Higher_Education_in_Africa_-_Togo Provides a brief overview of the history, current enrollment, governance, administration, research and publications of the country's higher education institutions.

Office_of_Sponsored_Programs Fundiing sources, rules and regulations, and current projects included.

Institutional_Animal_Care_and_Use_Committee Resource for animal users, which includes a collection of institutional policies, deadline information for submission of protocols, training and orientation information and forms to download.

Department_of_Music A description of academic courses, faculty listing, calendar of classes, description of facilities and alumni information.

  Alexa statistic for http://www.cl.cam.ac.uk/~mgk25/iso-time.html





Get your Google PageRank






Please visit: http://www.cl.cam.ac.uk/~mgk25/iso-time.html
  Related sites for http://www.cl.cam.ac.uk/~mgk25/iso-time.html
    Chichester_District_Museum Local history.
    Keep_Schools_Safe_the_School_Safety_and_Security_Resource Provides school safety and violence prevention information for students, parents, and school administators. Covers topics from bullying, peer pressure, and underage drinking to the physical security o
    Fund_for_Teachers A non-profit organization providing educational grants to teachers for summer sabaticals.
    Eagle_Hill_School Serving children ages 5-16 with learning disabilities. Day and boarding programs available. Greenwich, CT.
    San_Diego_State_University Offers an international business program with foreign language courses and opportunities for internships abroad.
    Association_of_State_Colleges_and_Universities The association promotes broad understanding of public higher education's essential role in society, and is the advocate and guardian for public higher education policy issues at the national, state a
    The_Phi_Kappa_Literary_Society Home to writing and informed debate, this society offers the opportunity to discuss current topics and learn new skills in speaking and research. Includes membership information, biographies, events a
    International_School_Moshi_-_Moshi_Campus Private, co-educational institution. News, admissions, curriculum, photos, student pages and contact information. [Diploma]
    Department_of_English At Rutgers English, we educate our undergraduates to be nuanced readers of literary texts who understand the history of literary forms as well as the impact of historical forces on literature. We teac
    Merced_College Community college based in Merced, with an additional campus in Los Banos.
    Food_Science Educate students for careers in the food industry, academia, and government, conduct research that will enhance the wholesomeness and availability of food, transfer information and technology to consu
    Center_for_the_Study_of_Teaching_and_Learning Provides research, services and training to education professionals to enhance teacher competencies, improve technology and increase student achievement.
    Medicinal_Chemistry Information for prospective students, news, events, degree programs, course listings, departmental information, research, and additional information.
    Wieser_Angus_Ranch WAR raises registered Angus Cattle, Coastal Bermuda Hay and beautiful children. In addition to homeschooling information and resources, the page sports a photo gallery, a rhombic attenae and ham radi
    Centre_Daily_Times__Penn_State_Sports News, scores, and highlights.
    Yamaguchi_University Offers history, faculties and graduate schools, administration, contact information, and facilities. Located in Yamaguchi City.
    Nevada_Museum_of_Art Features modern and contemporary works by artists including Roy Lichtenstein, Georgia O'Keeffe and William Wegman. Located in Reno.
    Faculty_of_Applied_Science_and_Engineering Information for current students and applicants, at both the undergraduate and graduate levels, with news and events, programs and maps.
    Canadian_Literature Literary quarterly published by the UBC English Department, including articles on writers and books, new poetry, and book reviews. Complete index and some articles available.
    Pearson_Scholarship_Hall History, news, information.
This is websites2007.org cache of m/ as retrieved on 2010.07.30 websites2007.org's cache is the snapshot that we took of the page as we crawled the web. The page may have changed since that time.
International standard date and time notation table { margin-left: auto; margin-right: auto; border-collapse: collapse; } td, th { border: 2px solid black; padding: 0.3ex 1em; }_uacct = "UA-78103-1";urchinTracker();

A summary of the international standard date and time notation

by Markus KuhnInternational Standard ISO 8601 specifies numeric representationsof date and time. This standard notation helps to avoid confusion ininternational communication caused by the many different nationalnotations and increases the portability of computer user interfaces.In addition, these formats have several important advantages forcomputer usage compared to other traditional date and time notations.The time notation described here is already the de-facto standard inalmost all countries and the date notation is becoming increasinglypopular.Especially authors of Web pages and software engineers whodesign user interfaces, file formats, and communication protocolsshould be familiar with ISO 8601.Contents: Date, time ofday, time zone, softwarehints.

Date

The international standard date notation isYYYY-MM-DDwhere YYYY is the year in the usual Gregorian calendar, MM is themonth of the year between 01 (January) and 12 (December), and DD isthe day of the month between 01 and 31.For example, the fourth day of February in the year 1995 is writtenin the standard notation as1995-02-04Other commonly used notations are e.g. 2/4/95, 4/2/95, 95/2/4,4.2.1995, 04-FEB-1995, 4-February-1995, and many more. Especially thefirst two examples are dangerous, because as both are used quite oftenin the U.S. and in Great Britain and both can not be distinguished, itis unclear whether 2/4/95 means 1995-04-02 or 1995-02-04. The datenotation 2/4/5 has at least six reasonable interpretations (assumingthat only the twentieth and twenty-first century are reasonablecandidates in our life time).Advantages of the ISO 8601 standard date notation compared to othercommonly used variants:easily readable and writeable by software (no ‘JAN’, ‘FEB’, ...table necessary)easily comparable and sortable with a trivial stringcomparisonlanguage independentcan not be confused with other popular date notationsconsistency with the common 24h time notation system, where thelarger units (hours) are also written in front of the smaller ones(minutes and seconds)strings containing a date followed by a time are also easilycomparable and sortable (e.g. write “1995-02-04 22:45:00”)the notation is short and has constant length, which makes bothkeyboard data entry and table layout easieridentical to the Chinese date notation, so the largest culturalgroup (>25%) on this planet is already familiar with it :-)date notations with the order “year, month, day” are in additionalready widely used e.g. in Japan, Korea, Hungary, Sweden, Finland,Denmark, and a few other countries and people in the U.S. are alreadyused to at least the “month, day” ordera 4-digit year representation avoids overflow problems after2099-12-31As dates will look a little bit strange anyway starting with2000-01-01 (e.g. like 1/1/0), it has been suggested that the year 2000is an excellent opportunity to change to the standard datenotation.ISO 8601 is only specifying numeric notations and does not coverdates and times where words are used in the representation. It is notintended as a replacement for language-dependent worded date notationssuch as “24. Dezember 2001” (German) or “February 4, 1995” (USEnglish). ISO 8601 should however be used to replace notations such as“2/4/95” and “9.30 p.m.”.Apart from the recommended primary standard notationYYYY-MM-DD, ISO 8601 also specifies a number ofalternative formats for use in applications with special requirements.All of these alternatives can easily and automatically bedistinguished from each other:The hyphens can be omitted if compactness of the representation ismore important than human readability, for example as in19950204If only the month or even only the year is of interest:1995-02 or 1995In commercial and industrial applications (delivery times,production plans, etc.), especially in Europe, it is often required torefer to a week of a year. Week 01 of a year is per definition thefirst week that has the Thursday in this year, which is equivalent tothe week that contains the fourth day of January. In other words, thefirst week of a new year is the week that has the majority of its daysin the new year. Week 01 might also contain days from the previousyear and the week before week 01 of a year is the last week (52 or 53)of the previous year even if it contains days from the new year. Aweek starts with Monday (day 1) and ends with Sunday (day 7). Forexample, the first week of the year 1997 lasts from 1996-12-30 to1997-01-05 and can be written in standard notation as1997-W01 or 1997W01The week notation can also be extended by a number indicating theday of the week. For example, the day 1996-12-31, which is the Tuesday(day 2) of the first week of 1997, can also be written as1997-W01-2 or 1997W012for applications like industrial planning where many things likeshift rotations are organized per week and knowing the week number andthe day of the week is more handy than knowing the day of themonth.An abbreviated version of the year and week number like1995W05is sometimes useful as a compact code printed on a product thatindicates when it has been manufactured.Note: The ISO standard avoidsexplicitly stating the possible range of week numbers, but this caneasily be deduced from the definition. Possible ISO week numbers arein the range 01 to 53. A year always has a week 52. (There is onehistoric exception: the year in which the Gregorian calendar wasintroduced had less than 365 days and less than 52 weeks.)Proof: Per definition, the first week of a year isW01 and consequently days before week W01 belong to the previous yearand so there is no week with lower numbers. Considering the highestpossible week number, the worst case is a leap year like 1976 thatstarts with a Thursday, because this keeps the highest possible numberof days of W01 in the previous year, i.e. 3 days. In this case, theSunday of W52 of the worst case year is day number 4+51*7=361 and361-366=5 days of W53 belong still to this year, which guarantees thatin the worst case year day 4 (Thursday) of W53 is not yet in the nextyear, so a week number 53 is possible. For example, the 53 weeks ofthe worst case year 1976 started with 1975-12-29 = 1976-W01-1 andended with 1977-01-02 = 1976-W53-7. On the other hand, considering thelowest number of the last week of a year, the worst case is a non-leapyear like 1999 that starts with a Friday, which ensures that the firstthree days of the year belong to the last week of the previous year.In this case, the Sunday of week 52 would be day number 3+52*7=367,i.e. only the last 367-365=2 days of the W52 reach into the next yearand consequently, even a worst case year like 1999 has a week W52including the days 1999-12-27 to 2000-01-02. q.e.d.Both day and year are useful units of structuring time, because theposition of the sun on the sky, which influences our lives, isdescribed by them. However the 12 months of a year are of some obscuremystic origin and have no real purpose today except that people areused to having them (they do not even describe the current position ofthe moon). In some applications, a date notation is preferred thatuses only the year and the day of the year between 001 and 365 (366 inleap years). The standard notation for this variant representing theday 1995-02-04 (that is day 035 of the year 1995) is1995-035 or 1995035Leap years are years with an additional day YYYY-02-29, where theyear number is a multiple of four with the following exception: If ayear is a multiple of 100, then it is only a leap year if it is also amultiple of 400. For example, 1900 was not a leap year, but 2000 isone.

Time of day

The international standard notation for the time of day ishh:mm:sswhere hh is the number of complete hours that have passed sincemidnight (00-24), mm is the number of complete minutes that havepassed since the start of the hour (00-59), and ss is the number ofcomplete seconds since the start of the minute (00-60). If the hourvalue is 24, then the minute and second values must be zero.Note: The value 60 for ss mightsometimes be needed during an inserted I wish to thank EdwardM. Reingold for developing the fine GNU Emacs calendar functions,as well as Rich Wales, Mark Brader, Paul Eggert, and others in the comp.std.internat,
 

An

overview

of

the

ISO

8601

notation

for

dates.

http://www.cl.cam.ac.uk/~mgk25/iso-time.html

International Standard Date and Time Notation 2010 July

dvd rental

dvd


An overview of the ISO 8601 notation for dates.

Rules

© 2010 Internet Explorer 5+ or Netscape 6+
Recommended Sites: 1. Arts - Business - Computers - Games - Health - Home - Kids and Teens - News - Recreation - Reference - Regional - Science - Shopping - Society - Sports - World Miss Gallery - Top Anime Hentai - DVD rental by mail - Wordpress Themes - Rare Jordans - Package Holidays - Property in Spain - Anime
2010-07-30 07:54:45

Copyright 2005, 2006 by Webmaster
Websites is cool :) 72Business Directory - Michael Jackson - Drzwi - Shopping Directory - Pogodzinach.net