Get the current time and date in Javascript

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Use new Date() to generate a new Date object containing the current date and time.
Note that Date() called without arguments is equivalent to new Date(Date.now()).
Once you have a date object, you can apply any of the several available methods to extract its properties (e.g.
getFullYear() to get the 4-digits year).
Below are some common date methods.

Get the current year

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var year = (new Date()).getFullYear();
console.log(year);

// Sample output: 201

Get the current month

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var month = (new Date()).getMonth();
console.log(month);

// Sample output: 0
Please note that 0 = January. This is because months range from 0 to 11, so it is often desirable to add +1 to the
index

Get the current day

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var day = (new Date()).getDate();
console.log(day);

// Sample output: 31

Get the current hour

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var hours = (new Date()).getHours();
console.log(hours);

// Sample output: 10

Get the current minutes

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var minutes = (new Date()).getMinutes();
console.log(minutes);

// Sample output: 39

Get the current seconds

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var seconds = (new Date()).getSeconds();
console.log(second);

// Sample output: 48

Get the current milliseconds
To get the milliseconds (ranging from 0 to 999) of an instance of a Date object, use its getMilliseconds method.

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var milliseconds = (new Date()).getMilliseconds();
console.log(milliseconds);

// Output: milliseconds right now

Convert the current time and date to a human-readable string

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var now = new Date();
// convert date to a string in UTC timezone format:
console.log(now.toUTCString());

// Output: Wed, 21 Jun 2017 09:13:01 GMT
The static method Date.now() returns the number of milliseconds that have elapsed since 1 January 1970 00:00:00
UTC. To get the number of milliseconds that have elapsed since that time using an instance of a Date object, use its
getTime method.

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// get milliseconds using static method now of Date
console.log(Date.now());
// get milliseconds using method getTime of Date instance
console.log((new Date()).getTime());