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View source for ISO 8601 - Wikipedia

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</div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> </div> <div id="contentSub"><div id="mw-content-subtitle">← <a href="/wiki/ISO_8601" title="ISO 8601">ISO 8601</a></div></div> <div id="mw-content-text" class="mw-body-content"><p>You do not have permission to edit this page, for the following reasons: </p> <ul class="permissions-errors"><li class="mw-permissionerror-blockedtext"> <div id="mw-blocked-text" style="border: 1px solid #AAA; background-color: var(--background-color-warning-subtle, ivory); color: inherit; padding: 1.5em; width: 100%; box-sizing: border-box;"> <div style="text-align: center;"><span style="font-size: 26px;"><span typeof="mw:File"><a href="/wiki/File:Stop_hand_nuvola.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/50px-Stop_hand_nuvola.svg.png" decoding="async" 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Review the information below for assistance if you do not believe that you have done anything wrong.<div class="paragraphbreak" style="margin-top:0.5em"></div> <p>The IP address or range 8.222.128.0/17 has been <a href="/wiki/Wikipedia:Blocking_policy" title="Wikipedia:Blocking policy">blocked</a> by <a href="/wiki/User:L235" title="User:L235">‪L235‬</a> for the following reason(s): </p> <div style="padding:10px; background:var(--background-color-base, white); color:inherit; border:1px #666 solid;"> <div class="user-block colocation-webhost" style="margin-bottom: 0.5em; background-color: #ffefd5; border: 1px solid #AAA; padding: 0.7em;"> <figure class="mw-halign-left" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Server-multiple.svg/40px-Server-multiple.svg.png" decoding="async" width="40" height="57" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/Server-multiple.svg/60px-Server-multiple.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/53/Server-multiple.svg/80px-Server-multiple.svg.png 2x" data-file-width="744" data-file-height="1052" /></span><figcaption></figcaption></figure><b>The <a href="/wiki/IP_address" title="IP address">IP address</a> that you are currently using has been blocked because it is believed to be a <a href="/wiki/Web_hosting_service" title="Web hosting service">web host provider</a> or <a href="/wiki/Colocation_centre" title="Colocation centre">colocation provider</a>.</b> To prevent abuse, <a href="/wiki/Wikipedia:Open_proxies" title="Wikipedia:Open proxies">web hosts and colocation providers may be blocked</a> from editing Wikipedia. <div style="border-top: 1px solid #AAA; clear: both">You will not be able to edit Wikipedia using a web host or colocation provider because it hides your IP address, much like a <a href="/wiki/Wikipedia:Open_proxies" title="Wikipedia:Open proxies">proxy</a> or <a href="/wiki/Virtual_private_network" title="Virtual private network">VPN</a>. <p><b>We recommend that you attempt to use another connection to edit.</b> For example, if you use a proxy or VPN to connect to the internet, turn it off when editing Wikipedia. If you edit using a mobile connection, try using a Wi-Fi connection, and vice versa. If you are using a corporate internet connection, switch to a different Wi-Fi network. If you have a Wikipedia account, please log in. </p><p>If you do not have any other way to edit Wikipedia, you will need to <a href="/wiki/Wikipedia:IP_block_exemption#Requesting_and_granting_exemption" title="Wikipedia:IP block exemption">request an IP block exemption</a>. </p> <style data-mw-deduplicate="TemplateStyles:r1214851843">.mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important}}</style><div class="hidden-begin mw-collapsible mw-collapsed" style=""><div class="hidden-title skin-nightmode-reset-color" style="text-align:center;">How to appeal if you are confident that your connection does not use a colocation provider's IP address:</div><div class="hidden-content mw-collapsible-content" style=""> If you are confident that you are not using a web host, you may <a href="/wiki/Wikipedia:Appealing_a_block" title="Wikipedia:Appealing a block">appeal this block</a> by adding the following text on your <a href="/wiki/Help:Talk_pages" title="Help:Talk pages">talk page</a>: <code>&#123;&#123;<a href="/wiki/Template:Unblock" title="Template:Unblock">unblock</a>&#124;reason=Caught by a colocation web host block but this host or IP is not a web host. My IP address is _______. <i>Place any further information here.</i> &#126;&#126;&#126;&#126;&#125;&#125;</code>. <b>You must fill in the blank with your IP address for this block to be investigated.</b> Your IP address can be determined <span class="plainlinks"><b><a class="external text" href="https://en.wikipedia.org/wiki/Wikipedia:Get_my_IP_address?withJS=MediaWiki:Get-my-ip.js">here</a></b></span>. Alternatively, if you wish to keep your IP address private you can use the <a href="/wiki/Wikipedia:Unblock_Ticket_Request_System" title="Wikipedia:Unblock Ticket Request System">unblock ticket request system</a>. There are several reasons you might be editing using the IP address of a web host or colocation provider (such as if you are using VPN software or a business network); please use this method of appeal only if you think your IP address is in fact not a web host or colocation provider.</div></div> <p><span class="sysop-show" style="font-size: 85%;"><span style="border:#707070 solid 1px;background-color:#ffe0e0;padding:2px"><b>Administrators:</b></span> The <a href="/wiki/Wikipedia:IP_block_exemption" title="Wikipedia:IP block exemption">IP block exemption</a> user right should only be applied to allow users to edit using web host in exceptional circumstances, and requests should usually be directed to the functionaries team via email. If you intend to give the IPBE user right, a <a href="/wiki/Wikipedia:CheckUser" title="Wikipedia:CheckUser">CheckUser</a> needs to take a look at the account. This can be requested most easily at <a href="/wiki/Wikipedia:SPI#Quick_CheckUser_requests" class="mw-redirect" title="Wikipedia:SPI">SPI Quick Checkuser Requests</a>. <b>Unblocking</b> an IP or IP range with this template <b>is highly discouraged</b> without at least contacting the blocking administrator.</span> </p> </div></div> </div> <p>This block will expire on 18:23, 24 August 2026. Your current IP address is 8.222.208.146. </p> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>Even when blocked, you will <i>usually</i> still be able to edit your <a href="/wiki/Special:MyTalk" title="Special:MyTalk">user talk page</a>, as well as <a href="/wiki/Wikipedia:Emailing_users" title="Wikipedia:Emailing users">email</a> administrators and other editors. </p> </div> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>For information on how to proceed, please read the <b><a href="/wiki/Wikipedia:Appealing_a_block#Common_questions" title="Wikipedia:Appealing a block">FAQ for blocked users</a></b> and the <a href="/wiki/Wikipedia:Appealing_a_block" title="Wikipedia:Appealing a block">guideline on block appeals</a>. The <a href="/wiki/Wikipedia:Guide_to_appealing_blocks" title="Wikipedia:Guide to appealing blocks">guide to appealing blocks</a> may also be helpful. </p> </div> <p>Other useful links: <a href="/wiki/Wikipedia:Blocking_policy" title="Wikipedia:Blocking policy">Blocking policy</a> &#183; <a href="/wiki/Help:I_have_been_blocked" title="Help:I have been blocked">Help:I have been blocked</a> </p> </div></li><li class="mw-permissionerror-globalblocking-blockedtext-range"> <div id="mw-blocked-text" style="border: 1px solid #AAA; background-color: var(--background-color-warning-subtle, ivory); color: inherit; padding: 1.5em; width: 100%; box-sizing: border-box;"> <div style="text-align: center;"><span style="font-size: 26px;"><span typeof="mw:File"><a href="/wiki/File:Stop_hand_nuvola.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/50px-Stop_hand_nuvola.svg.png" decoding="async" width="50" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/75px-Stop_hand_nuvola.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/f1/Stop_hand_nuvola.svg/100px-Stop_hand_nuvola.svg.png 2x" data-file-width="240" data-file-height="240" /></a></span><b> This IP address range has been <a href="https://meta.wikimedia.org/wiki/Global_blocks" class="extiw" title="m:Global blocks">globally blocked</a>.</b></span><br /><span style="font-size: 18px;">This does not affect your ability to <i>read</i> Wikipedia pages.</span></div><div class="paragraphbreak" style="margin-top:0.5em"></div><b>Most people who see this message have done nothing wrong.</b> Some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism, and can sometimes affect other users who are unrelated to that abuse. Review the information below for assistance if you do not believe that you have done anything wrong.<div class="paragraphbreak" style="margin-top:0.5em"></div><div class="paragraphbreak" style="margin-top:0.5em"></div> <p>This block affects editing on all Wikimedia wikis. </p><p>The IP address or range 8.222.128.0/17 has been globally <a href="/wiki/Wikipedia:Blocking_policy" title="Wikipedia:Blocking policy">blocked</a> by <a href="/wiki/User:Jon_Kolbert" title="User:Jon Kolbert">‪Jon Kolbert‬</a> for the following reason(s): </p> <div style="padding:10px; background:var(--background-color-base, white); color:inherit; border:1px #666 solid;"> <p><a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/NOP" class="extiw" title="m:Special:MyLanguage/NOP">Open proxy/Webhost</a>: See the <a href="https://meta.wikimedia.org/wiki/WM:OP/H" class="extiw" title="m:WM:OP/H">help page</a> if you are affected </p> </div> <p>This block will expire on 15:12, 27 August 2028. Your current IP address is 8.222.208.146. </p> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>Even while globally blocked, you will <i>usually</i> still be able to edit pages on <a href="https://meta.wikimedia.org/wiki/" class="extiw" title="m:">Meta-Wiki</a>. </p> </div> <div class="paragraphbreak" style="margin-top:0.5em"></div><div style="font-size: 16px;"> <p>If you believe you were blocked by mistake, you can find additional information and instructions in the <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/No_open_proxies" class="extiw" title="m:Special:MyLanguage/No open proxies">No open proxies</a> global policy. Otherwise, to discuss the block please <a href="https://meta.wikimedia.org/wiki/Steward_requests/Global" class="extiw" title="m:Steward requests/Global">post a request for review on Meta-Wiki</a>. You could also send an email to the <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/Stewards" class="extiw" title="m:Special:MyLanguage/Stewards">stewards</a> <a href="https://meta.wikimedia.org/wiki/Special:MyLanguage/VRT" class="extiw" title="m:Special:MyLanguage/VRT">VRT</a> queue at <kbd>stewards@wikimedia.org</kbd> including all above details. </p> </div> <p>Other useful links: <a href="https://meta.wikimedia.org/wiki/Global_blocks" class="extiw" title="m:Global blocks">Global blocks</a> &#183; <a href="/wiki/Help:I_have_been_blocked" title="Help:I have been blocked">Help:I have been blocked</a> </p> </div></li></ul><hr /> <div id="viewsourcetext">You can view and copy the source of this page:</div><textarea readonly="" accesskey="," id="wpTextbox1" cols="80" rows="25" style="" class="mw-editfont-monospace" lang="en" dir="ltr" name="wpTextbox1">==Usage== On the [[Internet]], the [[World Wide Web Consortium]] (W3C) uses the [[IETF]] standard based on ISO&amp;nbsp;8601 in defining a profile of the standard that restricts the supported date and time formats to reduce the chance of error and the complexity of software. The very simple specification is based on a draft of the &lt;nowiki>RFC 3339&lt;/nowiki> mentioned below.&lt;ref>[http://www.w3.org/TR/NOTE-datetime Note about Date and Time Formats to W3C from Reuters] {{Webarchive|url=https://web.archive.org/web/20110824114114/http://www.w3.org/TR/NOTE-datetime |date=2011-08-24 }}&lt;!--should be XML Schema-->&lt;/ref> ISO&amp;nbsp;8601 is referenced by several specifications, but the full range of options of ISO&amp;nbsp;8601 is not always used. For example, the various [[electronic program guide]] standards for TV, digital radio, etc. use several forms to describe points in time and durations. The [[ID3]] audio meta-data specification also makes use of a subset of ISO&amp;nbsp;8601.&lt;ref>{{cite web|url=http://www.id3.org/id3v2.4.0-structure|title=ID3 tag version 2.4.0 - Main Structure|last=Nilsson|first=M.|date=2000-11-01|publisher=id3.org|pages=§4|access-date=2009-09-27|archive-date=2015-03-09|archive-url=https://web.archive.org/web/20150309021728/http://id3.org/id3v2.4.0-structure}}&lt;/ref> The [[X.690]] encoding standard's [[GeneralizedTime]] makes use of another subset of ISO&amp;nbsp;8601. === Commerce === As of 2006, the [[ISO week date]] appears in its basic form on major brand commercial packaging in the United States.{{Citation needed|date=March 2023}} Its appearance depended on the particular packaging, canning, or bottling plant more than any particular brand. The format is particularly useful for quality assurance, so that production errors can be readily traced. === RFCs === IETF RFC 3339&lt;ref>{{cite IETF |title=Date and Time on the Internet: Timestamps |date=July 2002 |last1=Newman |first1=Chris |last2=Klyne |first2=Graham |rfc=3339 |access-date=2015-10-25 |publisher=[[Internet Engineering Task Force|IETF]] }}&lt;/ref> defines a profile of ISO&amp;nbsp;8601 for use in [[Internet protocol suite|Internet protocols]] and [[Internet standard|standards]]. It explicitly excludes durations and dates before the [[common era]]. The more complex formats such as week numbers and ordinal days are not permitted.&lt;ref>{{cite IETF |title=Date and Time on the Internet: Timestamps|rfc=3339|section=5.6|sectionname=Internet Date/Time Format | page=8 |date=July 2002 |last1=Newman |first1=Chris |last2=Klyne |first2=Graham |doi=10.17487/RFC3339 |access-date=2015-10-25 |publisher=[[Internet Engineering Task Force|IETF]]}}&lt;/ref> &lt;nowiki>RFC 3339&lt;/nowiki> deviates from ISO&amp;nbsp;8601 in allowing a zero time zone offset to be specified as "-00:00", which ISO&amp;nbsp;8601 forbids. &lt;nowiki>RFC 3339&lt;/nowiki> intends "-00:00" to carry the connotation that it is not stating a preferred time zone, whereas the conforming "+00:00" or any non-zero offset connotes that the offset being used is preferred. This convention regarding "-00:00" is derived from earlier RFCs, such as RFC 2822 which uses it for timestamps in [[email]] headers.&lt;ref>{{cite IETF |title=Internet Message Format |rfc=2822 |sectionname=Date and Time Specification |section=3.3 |page=14 |date=April 2001 |publisher=[[Internet Engineering Task Force|IETF]]}}&lt;/ref> &lt;nowiki>RFC 2822&lt;/nowiki> made no claim that any part of its timestamp format conforms to ISO&amp;nbsp;8601, and so was free to use this convention without conflict. Building upon the foundations of RFC 3339, the [[Internet Engineering Task Force|IETF]] introduced the Internet Extended Date/Time Format (IXDTF) in RFC 9557.&lt;ref>{{cite IETF |title=Date and Time on the Internet: Timestamps with Additional Information|rfc=9557 |date=2024 |last1=Sharma |first1=Ujjwal |last2=Bormann |first2=Carsten |doi=10.17487/RFC9557 |access-date=2024-05-28 |url=https://www.rfc-editor.org/info/rfc9557|publisher=[[Internet Engineering Task Force|IETF]] }}&lt;/ref> This format extends the timestamp representation to include additional information such as an associated time zone name. The inclusion of time zone names is particularly useful for applications that need to account for events like daylight saving time transitions. Furthermore, IXDTF maintains compatibility with pre-existing syntax for attaching time zone names to timestamps, providing a standardized and flexible approach to timestamp representation on the internet. Example: &lt;code>1996-12-19T16:39:57-08:00[America/Los_Angeles]&lt;/code> === Adoption as national standards === &lt;!-- If possible, please specify revisions and release dates as well. In order to establish some chronology, older standards can be listed as well, but only if they were related to ISO 8601 already. --> {| class="wikitable" |- ! style="text-align:left" | Australia | AS/NZS ISO 8601.1:2021, AS/NZS ISO 8601.2:2021 (replaced AS ISO 8601-2007) |- ! style="text-align:left" | Austria | ÖNORM ISO 8601 (replaced ÖNORM EN 28601) |- ! style="text-align:left" | Belgium | NBN EN 28601 (1993) |- ! style="text-align:left" | Brazil | NBR 5892:2019 |- ! style="text-align:left" | Canada | CAN/CSA-Z234.4-89 (R2007)&lt;ref>National Standard of Canada, {{cite web|title=CAN/CSA-Z234.4-89 (R2007): All-Numeric Dates and Times|url=https://www.scc.ca/en/standardsdb/standards/4449|website=Standards Council of Canada|access-date=29 March 2018|language=en|date=31 December 1989|archive-date=30 March 2018|archive-url=https://web.archive.org/web/20180330075843/https://www.scc.ca/en/standardsdb/standards/4449|url-status=live}}&lt;/ref> |- ! style="text-align:left" | Colombia | NTC 1034:2014 [https://tienda.icontec.org/gp-elementos-de-datos-y-formatos-de-intercambio-intercambio-de-informacion-representacion-de-fechas-y-horas-ntc1034-2014.html Source ICONTEC (This standard is identical to ISO 8601:2004)] {{Webarchive|url=https://web.archive.org/web/20200116023212/https://tienda.icontec.org/wp-content/uploads/pdfs/NTC1034.pdf |date=2020-01-16 }} |- ! style="text-align:left" | China | GB/T 7408-2005 |- ! style="text-align:left" | Czech Republic | ČSN ISO 8601 (replaced ČSN EN 28601) (Obsolete as of 2019. No standard was given in exchange.&lt;ref>{{Cite web|date=2023-04-17|title=ČSN ISO 8601 (979738) Datové prvky a formáty výměny - Výměna informací - Zobrazení data a času|url=https://www.technicke-normy-csn.cz/csn-iso-8601-979738-241001.html|access-date=2023-04-17}}&lt;/ref>) |- ! style="text-align:left" | Denmark | DS/ISO 8601:2005 (replaced DS/EN 28601) |- ! style="text-align:left" | Estonia | EVS 8:2008; EVS-ISO 8601:2011 |- ! style="text-align:left" | [[European Norm]] | EN ISO 8601, EN 28601:1992 (cancelled 7 October 2011) |- ! style="text-align:left" | Finland | SFS-EN 28601 |- ! style="text-align:left" | France | NF Z69-200; NF EN 28601:1993-06-01 (cancelled) |- ! style="text-align:left" | Germany | DIN ISO 8601:2006-09 (replaced DIN EN 28601:1993-02); related: DIN 5008:2011-04 (replaced DIN 5008:2005-05, DIN 5008:2001-11, DIN 5008:1996-05) |- ! style="text-align:left" | Greece | ELOT EN 28601 |- ! style="text-align:left" | Hungary | MSZ ISO 8601:2003 |- ! style="text-align:left" | Iceland | IST EN 28601:1992 (obsolete) |- ! style="text-align:left" | [[India]] | IS 7900:2001 |- ! style="text-align:left" | Ireland | IS/EN 28601:1993 |- ! style="text-align:left" | Italy | UNI EN 28601 (1993) |- ! style="text-align:left" | Japan | JIS X 0301:2002 |- ! style="text-align:left" | Korea, Republic of | KS X ISO 8601 |- ! style="text-align:left" | Lithuania | LST ISO 8601:2006 (replaced LST ISO 8601:1997) |- ! style="text-align:left" | Luxembourg | ITM-EN 28601 |- ! style="text-align:left" | Mexico | NMX-CH-150-IMNC-1999&lt;ref>{{Cite web|url=http://dof.gob.mx/nota_detalle_popup.php?codigo=2052016|title=DOF - Diario Oficial de la Federación|access-date=2021-11-10|archive-date=2021-11-10|archive-url=https://web.archive.org/web/20211110203252/http://dof.gob.mx/nota_detalle_popup.php?codigo=2052016|url-status=live}}&lt;/ref> |- ! style="text-align:left" | Netherlands | NEN ISO 8601, NEN EN 28601 (1994), NEN 2772 |- ! style="text-align:left" | New Zealand | AS/NZS ISO 8601.1:2021, AS/NZS ISO 8601.2:2021 |- ! style="text-align:left" | Norway | NS-ISO 8601 |- ! style="text-align:left" | Poland | PN-EN 28601:2002 (Obsolete as of 2008. No standard was given in exchange.&lt;ref>{{Cite web|last=Czubla|first=Albin|date=2020-12-04|title=Główny Urząd Miar|url=https://www.gum.gov.pl/pl/aktualnosci/komunikaty/471,Numerowanie-tygodni-w-roku.pdf|access-date=2020-12-04|website=Główny Urząd Miar}}&lt;/ref>) |- ! style="text-align:left" | Portugal | NP EN 28601 |- ! style="text-align:left" | Russia | ГОСТ ИСО 8601-2001 (current), ГОСТ 7.64-90 (obsolete) |- ! style="text-align:left" | South Africa | SANS 8601:2009&lt;ref>{{Cite web|title=SANS 8601:2009 (Ed. 2.00)|url=https://store.sabs.co.za/catalog/product/view/id/216987/s/sans-8601-2009-ed-2-00/|url-status=live|archive-url=https://web.archive.org/web/20211124053222/https://store.sabs.co.za/catalog/product/view/id/216987/s/sans-8601-2009-ed-2-00/|archive-date=2021-11-24|access-date=2021-11-24|website=SABS Webstore}}&lt;/ref> |- ! style="text-align:left" | Spain | UNE EN 28601:1995 |- ! style="text-align:left" | Sweden | SS-ISO 8601-1:2022,&lt;ref>{{Cite web|title=SS-ISO 8601-1:2022|url=https://www.sis.se/en/produkter/standardization/information-sciences-publishing/documents-in-administration-commerce-and-industry/ss-iso-8601-12022/|access-date=2023-10-06|website=SIS Webstore}}&lt;/ref> contains the official English version of ISO 8601-1:2019. (Approved 2022-05-13, replaces SS-ISO 8601:2011, edition 2) |- ! style="text-align:left" | Switzerland | SN ISO 8601:2005-08 (replaced SN-EN 28601:1994) |- ! style="text-align:left" | Taiwan | CNS 7648 |- ! style="text-align:left" | Thailand | TIS 1111:2535 (1992) |- ! style="text-align:left" | [[Turkey]] | [https://intweb.tse.org.tr/Standard/Standard/Standard.aspx?081118051115108051104119110104055047105102120088111043113104073099090081121118054048055097110084 TS ISO 8601-1] and [https://intweb.tse.org.tr/Standard/Standard/Standard.aspx?081118051115108051104119110104055047105102120088111043113104073088120070088100073077122088115098 TS ISO 8601-2] (Accepted from 2021-02-15) |- ! style="text-align:left" | Ukraine | ДСТУ ISO 8601:2010 |- ! style="text-align:left" | United Kingdom | BS ISO 8601:2004, BS EN 28601 (1989-06-30) |- ! style="text-align:left" | United States | ANSI INCITS 30-1997 (R2008) and NIST FIPS PUB 4-2 |- ! style="text-align:left" | Vietnam | [https://thuvienphapluat.vn/TCVN/linh-vuc-khac/tcvn-6398-1-1998-dai-luong-va-don-vi-khong-gian-va-thoi-gian-907037.aspx TCVN 6398-1:1998] |} </textarea><div class="templatesUsed"></div><p id="mw-returnto">Return to <a href="/wiki/ISO_8601" title="ISO 8601">ISO 8601</a>.</p> <!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&amp;useformat=desktop" alt="" width="1" height="1" style="border: none; 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