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get current date in SQL query in JavaScript

I am writing a method in lambda using node.js and I have SQL Query in that method and I want current time so I will get that
here is my query I am using in that function
let sql =`UPDATE ctrData2.Tag SET Name=?, Description=?, UpdatedBy=?, UpdatedDate= now() WHERE TagId=?`;
SO what is the right way to get the current time?

JavaScript has Date object for working with dates:
let now = new Date();
This gives you the current Date, e.g.
Tue Jul 07 2020 10:42:56 GMT+0300 (East Africa Time)
Take a look at the documentation for the various ways you can manipulate Date objects.

How do I deal with dates-only in javascript when it keeps appending a time value?

I have a bunch of date fields (not datetime) in SQL Server. When they are fetched by the web server and sent to the client as JSON a time stamp is appended automatically. So instead of receiving just 2016-09-27 I get 2016-09-27T00:00:00.
When the user interacts with the uiBootstrap calendar control it automatically parses that string into a javascript date object and applies a 4 hour offset for the timezone. When this is sent back to the server it's sent as 2016-09-26T20:00:00. Now my date is off by a day. Also the next time it's fetched it will happen again. But this time it will start at 2016-09-26T00:00:00 and will roll back to 2016-09-25T20:00:00. Each cycle between client and server loses a day.
How do I keep my dates from changing? I'm looking at moment.js but so far haven't really figured out how it can help me.
EDIT
I've setup a test function to try different methods of converting datetimes back and forth.
console.log('JSONDate: ' + JSONDate);
var dt = new Date(JSONDate);
console.log('JS Converted Date: ');
console.log(dt);
console.log('Date converted back to string: ' + dt.toISOString());
Here's the output:
JSONDate: 2016-10-02T00:00:00
JS Converted Date: Sun Oct 02 2016 00:00:00 GMT-0400 (Eastern Daylight Time)
Date converted back to string: 2016-10-02T04:00:00.000Z
In this example the date is now 4 hours ahead.
EDIT 2
Web server is running .net, specifically WebAPI 2. I'm using Entity Framework 6 to communicate between web server and SQL Server 2012.

Ideally, your dates would be serialized in the JSON as just dates. Instead of 2016-10-02T00:00:00, you'd have 2016-10-02. The problem is that .NET doesn't have a built in Date type. It only has DateTime. There are alternatives, such as LocalDate in Noda Time, as discussed in this answer.
However, assuming you don't want to change anything on the back-end, the way to handle this is just to make sure the input date/time is treated as local time, and never converted to/from UTC. This should be the default behavior when you parse the string into a Date object when the string is like 2016-10-02T00:00:00, but the behavior has changed a few times over the years, so if you are potentially dealing with older browsers, you may get some that interpret it as UTC instead.
As far as output goes, the toISOString method of the Date object always outputs in UTC - which is the source of your conversion error. If you want an ISO8601 string in local time - you'd have to construct one yourself using the various accessor functions (getFullYear, etc.), handling zero-padding, and ensuring months are incremented to be 1-based instead of 0-based.
The easier solution is to use moment.js, which can handle this for you.
var d = moment('2016-10-02T00:00:00').toDate(); // now you have a `Date` object
var s = moment(d).format("YYYY-MM-DD[T]HH:mm:ss"); // now you have a string again
Of course, if you don't need the time portion, you can omit it from the format string and the rest should still work out ok.

You could try getting the offset and applying it back to the date. Something like this:
var d = new Date('2016-09-27'); //Mon Sep 26 2016 20:00:00 GMT-0400 (EDT)
new Date(d.getTime() + d.getTimezoneOffset() * 60 * 1000) //Tue Sep 27 2016 00:00:00 GMT-0400 (EDT)

Date is in string format

I am a newbie in javascript, come to my question.
I am using ionic 2 build application in which i am using date time picker for taking a time.
I am getting a a time format is in the "hh:mm" using time picker. eg(10:11) which is in string format and i am using Date() function which give me date is in something like
"Mon Aug 01 2016 01:32:03 GMT-0700 (Pacific Daylight Time)"
I want to replace "hh:mm"(01:32) from Date object with my string output of "hh:mm"(10:11) and then want to convert that into new Date object.
I also tried split and slice function but doesn't work.
If i get some guide about this will be very helpful.
I will be very helpful to all of you.
thanks

First of all, read up on Date.
In your case, the following code is a starting point.
var d = new Date();
d.setHours('10');
d.setMinutes('11');
Of course, you should exchange '10' and '11' with your picker data. Also, there are many other methods you can use on the Date object.

Why new Date set as today gives back yesterday [duplicate]

This question already has an answer here:
Why is new Date() removing a day? - Javascript [duplicate]
(1 answer)
Closed 6 years ago.
This is the first time that I get this result.
I'm using a Telerik control RadDatePicker and I'm assigning the date client-side.
The thing is that the control doesn't accept a string as date, but a Date object in javascript
So, my code to set the date in the control is
var radDateControl = $find("radDateControl");
radDateControl.set_selectedDate(new Date('2016-04-26'));
But, I realized that the new Date is returning the date as yesterday! Why?
It's 5:58pm Eastern Time (US & Canada) right now. And if I do this
alert(new Date('2016-04-26'));
I get this
Mon Apr 25 2016 20:00:00 GMT-0400 (Eastern Daylight Time)
Why and how can I get the day as of today.
Update
What I finally did it was this. Hope it can help others.
var dateAsString = "2016-04-26";
var year = dateAsString.split('-')[0];
var month = dateAsString.split('-')[1];
var day = dateAsString.split('-')[2];
var date = new Date(Date.UTC(year, month - 1, day, 0,0,0));
date.setTime(date.getTime() + date.getTimezoneOffset() * 60 * 1000);
rpdDateControl.set_selectedDate(date);

The newly created date object is totally correct. The wrong part in here or at least the part confusing you is your browser, parsing the date object into your current timezone.
If you create a new date object and save it into a variable ...
var date = new Date('2016-04-26');
... you will get what you've asked for. A Date object representing the 26/04/2016 (in UTC).
Since you use your browser to get your date objects value, the value just gets parsed through your local timezone (in your case Eastern Daylight Time). So if you want to handle the correct date which you've used to create the new date object, you may use .toUTCString().
I know, parsing timezones can be really frustrating. In order to handle different timezones, you may try out Moment or Moment Timezone. I guess moment should fit your needs, but just for the completion.

Just use Date.now() instead. I'm not sure why the string isn't working but this will work anyways.

You are asking date 26, but with timezone changes it gives you back 2 hours, why not just alert(new Date()); and let it give you its current date?, also to check it go to the server using ssh and type date, if its not the date you are you can use tzselect to modify the server to your date

telerik:RadTimePicker get only time using javascript

I have telerik:RadTimePicker control and I want to get the time using javascript. In telerik web site they have mentioned
var picker = $find("<%=RadDateTimePicker1.ClientID%>");
var view = picker.get_timeView();
alert(view.getTime());
But when I tried this I get all the details including time information.
Tue Feb 26 2013 05:00:00 GMT+0530 (Sri Lanka Standard Time)
What I really need is 05:00:00
Any easy way ?

the getTime() is returning you a JavaScript Date object. You will need to use the JavaScript Date constructs to extract the Hours:Minutes:Seconds kind of data. Here is a link to JavaScript date documentation: http://www.w3schools.com/jsref/jsref_obj_date.asp
you can just use the get_selectedDate() on the picker. This method too returns you a javaScript Date object. You can then extract the hours, minutes, seconds from the date object. we don't have any specific time string returning property on the picker object model.