使用JavaScript将ISO时间戳转换为日期格式？

Question

这似乎是一个非常简单的问题，但我似乎无法得到它的答案。我如何转换ISO时间戳以显示使用JavaScript的日期/时间？

例时间戳：2012-04-15T18：06：08-07：00

任何帮助表示赞赏，谷歌没有我。谢谢。

Answer 1

将它传递给Date构造函数。

> var date = new Date('2012-04-15T18:06:08-07:00') 
> date 
    Mon Apr 16 2012 04:06:08 GMT+0300 (EEST) 

有关日期的更多信息，请检查https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date。

Answer 2

的JavaScript（在一些最新的浏览器v1.85或更高）的最新版本可以处理ISO直接日期，以便你可以直接通过您的字符串为Date()构造是这样的：

var jsDate = new Date("2012-04-15T18:06:08-07:00"); 

但是旧版浏览器（IE9之前的任何版本的IE，任何版本的Firefox 4之前的版本等）都不支持这一点。对于这些浏览器，你可以得到，可以为你喜欢datejs这样做或自己解析它像这样的库：

var t = "2012-04-15T18:06:08-07:00"; 

function convertDate(t) { 
    var dateRE = /(\d+)-(\d+)-(\d+)T(\d+):(\d+):(\d+)([+\-]\d+):(\d+)/; 
    var match = t.match(dateRE); 
    var nums = [], item, date; 
    if (match) { 
     for (var i = 1; i < match.length; i++) { 
      nums.push(parseInt(match[i], 10)); 
     } 
     if (nums[7] < 0) { 
      nums[8] *= -1; 
     } 
     return(new Date(nums[0], nums[1] - 1, nums[2], nums[3] - nums[6], nums[4] - nums[7], nums[5])); 
    } 
} 

var jsDate = convertDate(t); 

工作演示在这里：http://jsfiddle.net/jfriend00/QSgn6/

Answer 3

这是我见过所以最好远即能使用客户端的桌面时区并改变实时与时区设置：

<script type="text/javascript"> 
    //Use: timeZoneConvert("2015-11-03T17:36:20.970"); 
    //Mon Nov 02 2015 17:36:20 GMT-0600 (Central Standard Time) [Date object] 

    //To format string use: timeZoneConvertFormatted("2015-11-03T17:36:20.970") 
    //November 2, 2015 5:36 PM 

    //Works even when I change client timezone to Pacific Standard 
    //Mon Nov 02 2015 15:36:20 GMT-0800 (Pacific Standard Time) 



var months = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]; 
function timeZoneConvert(dateStr) { 
    var d = parse_iso8601(dateStr); 
    //Change (- 360) constant for your server, mine is Central Standard 
    var dTimezoneOffset = new Date(d.getTime() - ((new Date()).getTimezoneOffset() - 360)*60000); 
    return dTimezoneOffset; 
} 

function timeZoneConvertFormatted(dateStr) { 
    return fDateTime(timeZoneConvert(dateStr)); 
} 


function fDateTime(date1) { 
    var date = date1.getDate(); 
    var year = date1.getFullYear(); 
    var month = months[date1.getMonth() + 1]; 
    var h = date1.getHours(); 
    var m = date1.getMinutes(); 
    var ampm = "AM"; 
    if(m < 10) { 
     m = "0" + m; 
    } 
    if(h > 12) { 
     h = h - 12; 
     var ampm = "PM"; 
    } 
    return month + " " + date + ", " + year + " " + h + ":" + m + " " + ampm; 
} 



    var iso8601extended = /^\d{4}(-\d{2}(-\d{2}([T ]\d{2}(:\d{2}(:\d{2})?)?([,.]\d+)?(Z|[+-]\d{2}(:\d{2})?)?)?)?)?$/; 
    var iso8601basic = new RegExp(iso8601extended.source.replace(/[:-]\\d/g, '\\d')); 
    var firstNumber = /[^\d]*(\d+)/g; 
    function parse_iso8601(s) { 
     s = s.replace(/,/g, '.'); 
     var matches = iso8601extended.exec(s); 
     if (matches) { 
      s = s.substr(0, 10).replace(/-/g, '') + s.substr(10).replace(/:/g, ''); 
     } 
     matches = iso8601basic.exec(s); 
     if (!matches) { 
      return null; 
     } 
     var d = new Date(); 
     d.setUTCFullYear(toNumber(matches[0].substring(0, 4))); 
     d.setUTCMonth(matches[1] ? toNumber(matches[1].substr(0, 2)) - 1 : 0); 
     d.setUTCDate(matches[2] ? toNumber(matches[2].substr(0, 2)) : 1); 
     var hours = 0, minutes = 0, seconds = 0, milliseconds = 0; 
     var fraction = matches[6] ? parseFloat(matches[6]) : 0; 
     if (matches[3]) { 
      hours = toNumber(matches[3].substr(1, 2)); 
      if (matches[4]) { 
       minutes = toNumber(matches[4].substr(0, 2)); 
       if (matches[5]) { 
        seconds = toNumber(matches[5].substr(0, 2)); 
        milliseconds = 1000 * fraction; 
       } else { 
        seconds = 60 * fraction; 
       } 
      } else { 
       minutes = 60 * fraction; 
      } 
     } 
     if (!matches[7]) { 
      d.setHours(hours); 
      d.setMinutes(minutes); 
     } else { 
      d.setUTCHours(hours); 
      d.setUTCMinutes(minutes); 
     } 
     d.setUTCSeconds(seconds); 
     d.setUTCMilliseconds(milliseconds); 
     if (matches[7] && matches[7] != 'Z') { 
      offset = toNumber(matches[7].substr(1, 2)) * 60; 
      if (matches[8]) { 
       offset += toNumber(matches[8].substr(0, 2)); 
      } 
      d.setTime(d.getTime() + 60000 * offset * (matches[7].substr(0, 1) == '-' ? 1 : -1)); 
     } 
     return d; 
    } 
    function toNumber(s) { 
     return parseInt(s.replace(/^0+(\d)/, '$1')); 
    } 
</script>