如何在JavaScript中将MSSQL日期时间整数转换为YYYY / mm / DD格式

Question

I get data from legacy API where there is a field 'opendate': 1086652416 I know that this is 24/06/2014

initially I have decide that this is unix_timestamp which should be multiply with 1000 and BINGO

Convert a Unix timestamp to time in JavaScript

var unix_timestamp = 1086652416;
var date = new Date(unix_timestamp*1000);
console.log(date); //  Date {Tue Jun 08 2004 06:53:36 GMT+0700 (NOVST)}

// As you see this is not 24/06/2014 !!!

99% that this is datetime format from MSSQL and it should be 24/06/2014

from early results: 1066467328 is 2011-12-15, 1066598400 is 2011-12-16

the question is: how could I convert this datetime to format YYYY-mm-dd in NodeJS

From MSSQL documenation:

Values with the datetime data type are stored internally by Microsoft SQL Server as two 4-byte integers. The first 4 bytes store the number of days before or after the base date, January 1, 1900. The base date is the system reference date. Values for datetime earlier than January 1, 1753, are not permitted.

Answer 1

Just mocked this method in firebug, should demonstrate a simple example to format a js date.

    function formatDate(date){
        var df = "yyyy-MM-dd",
           tmp = date.getDate();

        df = df.replace("dd", tmp < 10 ? "0"+tmp : tmp);
        tmp = date.getMonth()+1; //Add 1 for humans
        df = df.replace("MM", tmp < 10 ? "0"+tmp : tmp);
        df = df.replace("yyyy", date.getFullYear());
        return df;
    }

    alert(formatDate(new Date()));

Answer 2

You are on the right track, you are correctly converting the unix timestamp to a javascript date.

Where you are wrong is that unix timestamp 1086652416 is NOT 24/06/2014. It is Mon, 07 Jun 2004 23:53:36 GMT

Answer 3

You should try this:

var date = new Date(1086652416 * 1000);
var commonTime = date.toLocaleString();
console.log(commonTime);