date-now-function-javascript.md

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Date.now Function (JavaScript) | Microsoft Docs		01/18/2017	windows-client-threshold			devlang-javascript		language-reference	JavaScript TypeScript DHTML	now method	41beda89-1a40-4fb1-88b0-38c090af739b	14	mikejo5000	mikejo	ghogen

Date.now Function (JavaScript)

Gets the current date and time.

Syntax

  
Date.now()  

Return Value

The number of milliseconds between midnight, January 1, 1970, and the current date and time.

Remarks

The getTime method returns the number of milliseconds between January 1, 1970, and a specified date.

For information about how to calculate elapsed time and compare dates, see Calculating Dates and Times (JavaScript).

Example

The following example illustrates the use of the now method.

var start = Date.now();  
var response = prompt("What is your name?", "");  
var end = Date.now();  
var elapsed = (end - start) / 1000;  
document.write("You took " + elapsed + " seconds" + " to type: " + response);  
  
// Output:  
// You took <seconds> seconds to type: <name>  

Requirements

Not supported in installed versions earlier than Internet Explorer 9. However, it is supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards. Also supported in [!INCLUDEwin8_appname_long] apps.

See Also

getTime Method (Date)
Date Object
Calculating Dates and Times (JavaScript)
JavaScript Methods