這里使用JavaScript將當(dāng)前時間轉(zhuǎn)換成UTC標準時間，北京在東八區(qū)，在北京時間基礎(chǔ)上減掉8小時
<!DOCTYPE html>
<html>
<body>
<p id="demo">
Click the button to display the UTC date and time as a string.
</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction()
{
var d = new Date();
var x = document.getElementById("demo");
x.innerHTML=d.toUTCString();
}
</script>
</body>
</html>