SP2013 javascript client object model - get server time

Question

My client machine and server machine has time offset of 2:30 hours. So when I try to retrieve Date/Time field using JSOM, it gives time according to offset.

oListItem.get_item("Modified");

So how to get server time even when creating new Date() object. Can it be acheived by new SP.ClientContext.get_current().get_web().get_regionalSettings()

Answer 1

Yes you should get the site's TimeZone first and then convert your DateTime accordingly.

function getTimeZoneAndServerDateTime() {

    var context = SP.ClientContext.get_current();
    var web = context.get_web();
    var timeZone = web.get_regionalSettings().get_timeZone();
    context.load(timeZone);
    context.executeQueryAsync(
    function onSucceeded() {
        var info = timeZone.get_information();
        var offset = (info.get_bias() + info.get_daylightBias()) / 60.0;
        var serverDateTimeNow = new Date(new Date().getTime() - offset * 3600 * 1000).toISOString();
        console.log("serverDateTimeNow: " + serverDateTimeNow);
    },
     Failure
    );

}

function Failure() {
    alert("error");
}

Also Vadim Gremyachev has posted nice answer here at sharepoint designer - get current server datetime through javascript REST

Answer 2

I tried the accepted answer but it seems to give wrong time. I found this post which explains a better way and it seems to work for me always.

You use _spPageContextInfo.clientServerTimeDelta to get the time delta and then add that to current date time.

var currentServerDateTime = new Date(new Date().getTime() + _spPageContextInfo.clientServerTimeDelta);

Answer 3

Try this one

var sysDateTime = new Date("<%= System.DateTime.Now %>");

You need to connect your site through COM and then perform this one. May be this can help you