JavaScript Adding minutes to Date object

Given a date and the task is to add minutes to it using JavaScript. To add minutes to the date object, some methods are used which are listed below:

JavaScript getMinutes() Method: This method returns the Minutes (from 0 to 59) of the provided date and time. 

Syntax:

Date.getMinutes()

Parameters: This method does not accept any parameters.

Return value: It returns a number, from 0 to 59, representing the minutes.

JavaScript setMinutes() Method: This method set the minutes of a date object. This method can also be used to set the seconds and milliseconds. 

Syntax:

Date.setMinutes(min, sec, millisec)

Parameters:

• min: It is required parameter. It specifies the integer representing the minutes. Values expected are 0-59, but other values are allowed.
• sec: It is optional parameter. It specifies the integer representing the seconds. Values expected are 0-59, but other values are allowed.
• millisec: It is optional parameter. It specifies the integer representing the milliseconds. Values expected are 0-999, but other values are allowed.
  min = -1, it means the last minute of the previous hour and same for the other parameters.
  If min value passed to 60, it means the first minute of the next hour and same for the other parameters.

Return Value: It returns the new date with updated minute which is set by setMinutes() method.

JavaScript getTime() method: This method returns the number of milliseconds between midnight of January 1, 1970, and the specified date. 

Syntax:

Date.getTime()

Parameters: This method does not accept any parameters.

Return value: It returns a number, representing the number of milliseconds since midnight January 1, 1970.

JavaScript setTime() method: This method set the date and time by adding/subtracting a defined number of milliseconds to/from midnight January 1, 1970.

Syntax:

Date.setTime(millisec)

Parameters:

• millisec: Number of milliseconds to add/subtract to the given date

Return value: It returns, representing the number of milliseconds between the date object and midnight January 1 1970. 

Example 1: This example added 4 minutes to the variable today by using setTime() and getTime() methods. 

Javascript

let today = new Date();
console.log("Date = " + today);

Date.prototype.addMins = function (m) {
    this.setTime(this.getTime() + (m * 60 * 1000));
    return this;
}

let a = new Date();
a.addMins(4);

console.log(a);

Output

Date = Tue Jun 13 2023 20:16:29 GMT+0530 (India Standard Time)
Date Tue Jun 13 2023 20:20:29 GMT+0530 (India Standard Time)

Example 2: This example adds 6 minutes to the variable today by using setMinutes() and getMinutes() methods.

Javascript

let today = new Date();
console.log("Date = " + today);

Date.prototype.addMinutes = function (m) {
    this.setMinutes(this.getMinutes() + m);
    return this;
}

let a = new Date();
a.addMinutes(6);

console.log(a);

Output:

Date = Tue Jun 13 2023 20:18:07 GMT+0530 (India Standard Time)
Date Tue Jun 13 2023 20:24:07 GMT+0530 (India Standard Time)