Question

我有一个Json时间戳，我希望使用javascript将其转换为简单的日期时间格式。

我需要以下格式的日期和时间：dd-mm-yyyy hr：mn

以下是我希望提取时间戳的json日期示例：“timestamp”：1326439500

{
   "count": 2,
   "d": [
      {
         "title": "Apple iPhone 4S Sale Cancelled in Beijing Amid Chaos (Design You Trust)",
         "description": "Advertise here with BSA Apple cancelled its scheduled sale of iPhone 4S in one of its stores in China’s capital Beijing on January 13. Crowds outside the store in the Sanlitun district were waiting on queues overnight. There were incidents of scuffle between shoppers and the store’s security staff when shoppers, hundreds of them, were told that the sales [...]Source : Design You TrustExplore : iPhone, iPhone 4, Phone",
         "link": "http://wik.io/info/US/309201303",
         "timestamp": 1326439500,
         "image": null,
         "embed": null,
         "language": null,
         "user": null,
         "user_image": null,
         "user_link": null,
         "user_id": null,
         "geo": null,
         "source": "wikio",
         "favicon": "http://wikio.com/favicon.ico",
         "type": "blogs",
         "domain": "wik.io",
         "id": "2388575404943858468"
      },
      {
         "title": "Apple to halt sales of iPhone 4S in China (Fame Dubai Blog)",
         "description": "SHANGHAI – Apple Inc said on Friday it will stop selling its latest iPhone in its retail stores in Beijing and Shanghai to ensure the safety of its customers and employees. Go to SourceSource : Fame Dubai BlogExplore : iPhone, iPhone 4, Phone",
         "link": "http://wik.io/info/US/309198933",
         "timestamp": 1326439320,
         "image": null,
         "embed": null,
         "language": null,
         "user": null,
         "user_image": null,
         "user_link": null,
         "user_id": null,
         "geo": null,
         "source": "wikio",
         "favicon": "http://wikio.com/favicon.ico",
         "type": "blogs",
         "domain": "wik.io",
         "id": "16209851193593872066"
      }
   ]
}

Answer 1

自纪元以来以毫秒为单位返回日期。下面的代码创建了一个JS日期对象：

var d = new Date(1245398693390);
var formattedDate = d.getDate() + "-" + (d.getMonth() + 1) + "-" + d.getFullYear();
var hours = (d.getHours() < 10) ? "0" + d.getHours() : d.getHours();
var minutes = (d.getMinutes() < 10) ? "0" + d.getMinutes() : d.getMinutes();
var formattedTime = hours + ":" + minutes;

formattedDate = formattedDate + " " + formattedTime;

这是a working fiddle。

Answer 2

扩展Date的原型以包含这样的格式函数（或查找或创建自己的格式函数）：

Date.prototype.format = function (formatString) {
    // Returns a formatted date string
    var month = this.getMonth() + 1,
        day = this.getDate(),
        year = this.getFullYear(),
        hours24 = this.getHours(),
        hours = (hours24 === 0 ? 12 : hours24 > 12 ? hours24 - 12 : hours24),
        meridiem = hours24 >= 12 ? "PM" : "AM",
        minutes = this.getMinutes(),
        seconds = this.getSeconds();

    return formatString.replace(/(MM)/g, month.padLeft(2, '0'))
        .replace(/(M)/g, month)
        .replace(/(dd)/g, day.padLeft(2, '0'))
        .replace(/(d)/g, day)
        .replace(/(yyyy)/ig, year)
        .replace(/(yy)/ig, year.toString().substring(2, 4))
        .replace(/(hh)/g, hours.padLeft(2, '0'))
        .replace(/(h)/g, hours)
        .replace(/(HH)/g, hours24.padLeft(2, '0'))
        .replace(/(H)/g, hours24)
        .replace(/(mm)/g, minutes.padLeft(2, '0'))
        .replace(/(m)/g, minutes)
        .replace(/(ss)/g, seconds.padLeft(2, '0'))
        .replace(/(s)/g, seconds)
        .replace(/(tt)/g, meridiem.toLowerCase())
        .replace(/(TT)/g, meridiem);
};

然后，要将时间戳转换为所需格式dd-mm-yyyy hr:mn（如评论中所述），您需要执行以下操作：

var dateString = new Date(timestamp).format("dd-MM-yyyy hh:mm");

[编辑] 以下是随附的打击垫功能：

Number.prototype.padLeft = function (width, padChar) {
    // Returns a padded string
    padChar = padChar || ' ';
    var value = this.toString();
    while (value.length < width) {
        value = padChar + value;
    }
    return value;
};

Answer 3

<script>
var timestamp=1326439320;
var date=new Date(timestamp);
var hours = date.getHours(); // minutes part from the timestamp
var minutes = date.getMinutes(); // seconds part from the timestamp
var seconds = date.getSeconds(); // will display time in 10:30:23 format
 var formattedTime = hours + ':' + minutes + ':' + seconds;
alert(formattedTime);
</script>

在javascript中将Json时间戳转换为正常日期和时间

3 个答案: