convert-Csharp-DateTime-Ticks-to-js

Posted 2020-10-02 ligl

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<!DOCTYPE html>
<html>
<head>
    <script>
        function myFunction() {
            var b = formatDate(636371998735052582);
            document.write(b);
        }

        //格式化时间
        function formatDate(ticks) {
            //var ticks = 635556672000000000;

            //ticks are in nanotime; convert to microtime
            var ticksToMicrotime = ticks / 10000;

            //ticks are recorded from 1/1/1; get microtime difference from 1/1/1/ to 1/1/1970
            var epochMicrotimeDiff = Math.abs(new Date(0, 0, 1).setFullYear(1));

            //new date is ticks, converted to microtime, minus difference from epoch microtime
            var now = new Date(ticksToMicrotime - epochMicrotimeDiff);
            var year = now.getFullYear();
            var month = now.getMonth() + 1;
            var date = now.getDate();
            var hour = now.getHours();
            var minute = now.getMinutes();
            var second = now.getSeconds();
            return year + "-" + month + "-" + date + "   " + hour + ":" + minute + ":" + second;

        }

    </script>
</head>

<body>
    <button onclick="myFunction()">点击这里</button>
</body>
</html>

显示结果 2017-8-1 15:57:53

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