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JS get the current time, time and timestamp conversion

2022-07-26 13:41:00 【Tangce】

One 、 attribute
11.6 Get the current time , count down
js Get time from new date() Usage of
var myDate = new Date();// Get the current time of the system
myDate.getYear(); // Get current year (2 position )
myDate.getFullYear(); // Get full year (4 position ,1970-???)
myDate.getMonth(); // Get current month (0-11,0 representative 1 month )
myDate.getDate(); // Get current day (1-31)
myDate.getDay(); // Get current week X(0-6,0 For Sunday )
myDate.getTime(); // Get the current time ( from 1970.1.1 Milliseconds to start )
myDate.getHours(); // Get current hours (0-23)
myDate.getMinutes(); // Get current minutes (0-59)
myDate.getSeconds(); // Get current seconds (0-59)
myDate.getMilliseconds(); // Get current milliseconds (0-999)
myDate.toLocaleDateString(); // Get current date
var mytime=myDate.toLocaleTimeString(); // Get the current time
myDate.toLocaleString( ); // Get date and time

Two 、 Example
Eg：
One ： Time to time stamp ：javascript There are four ways to get a timestamp , All by instantiating time objects new Date() To further obtain the current timestamp
1.var timestamp1 = Date.parse(new Date()); // result ：1477808630000 This method is not recommended , Millisecond level values are converted to 000
console.log(timestamp1);
2.var timestamp2 = (new Date()).valueOf(); // result ：1477808630404 adopt valueOf() Function returns the original value of the specified object to get the exact timestamp value
console.log(timestamp2);
3.var timestamp3 = new Date().getTime(); // result ：1477808630404 , Get the millisecond value of the current time directly through the prototype method , accuracy
console.log(timestamp3);
4.var timetamp4 = Number(new Date()) ; // result ：1477808630404 , Turn time into a number Type value , Timestamp
console.log(timetamp4);

3、 ... and 、demo
Insert picture description here 

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title> Easy to use countdown js Code  -  Stationmaster material </title>
<style>
*{ margin:0; padding:0; list-style:none;}
body{ font-size:18px; text-align:center;}
.time{ height:30px; padding:200px;}
</style>
</head>
<body>
    <div class="time">
        <span id="t_d">00 God </span>
        <span id="t_h">00 when </span>
        <span id="t_m">00 branch </span>
        <span id="t_s">00 second </span>
    </div>
<script>
   function GetRTime(){
   		// Double 11 countdown draw 
       var EndTime= new Date('2018/11/11 00:00:00');
       var NowTime = new Date();
       var t =EndTime.getTime() - NowTime.getTime();
       var d=Math.floor(t/1000/60/60/24);
       var h=Math.floor(t/1000/60/60%24);
       var m=Math.floor(t/1000/60%60);
       var s=Math.floor(t/1000%60);

       document.getElementById("t_d").innerHTML = d + " God ";
       document.getElementById("t_h").innerHTML = h + " when ";
       document.getElementById("t_m").innerHTML = m + " branch ";
       document.getElementById("t_s").innerHTML = s + " second ";
   }
   setInterval(GetRTime,0);
  
</script>
</body>
</html>
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https://yzsam.com/2022/207/202207261024000652.html

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