published: 08 Aug 2022
2 min read
How to add seconds to a date in JavaScript
To add seconds to date in JavaScript:
- Use the
getSeconds()method to get the seconds of the given date. - Use the
setSeconds()method by passing the result returned bygetSeconds()plus the number of seconds you want to add. - The
setSeconds()method sets the value on the given date.
Here is an example that adds 10 seconds to the current date in JavaScript:
const today = new Date()
today.setSeconds(today.getSeconds() + 10)
console.log(today)
// Sat Sep 10 2022 22:47:41 GMT+0500 (Pakistan Standard Time)
The getSeconds() method returns a number between 0 and 59, denoting the number of seconds of the given date.
The setSeconds() method takes a number as input representing the number of seconds and sets the value on the date.
The above methods also take care of the situation where adding a specific number of seconds to date results in the next day, month, or year:
const date = new Date('2022-09-10T23:33:45.900Z')
date.setSeconds(date.getSeconds() + 30)
console.log(date.toUTCString())
// Sat, 10 Sep 2022 23:34:15 GMT
If you often need to add seconds to date, just create a reusable function that takes the number of seconds as a parameter and adds them to the current date:
Date.prototype.addSeconds = function (secs) {
const date = new Date(this.valueOf())
date.setSeconds(date.getSeconds() + secs)
return date
}
const date = new Date('2022-09-10T16:23:45.900Z')
// Add 45 Seconds
const result = date.addSeconds(45)
console.log(result.toUTCString())
// Sat, 10 Sep 2022 16:24:30 GMT
In the above example, we added a function called addSeconds() to the Date object prototype. This function will be available to all instances of Date for adding seconds to date.
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How to add seconds to a date in JavaScript
To add seconds to date in JavaScript:
- Use the
getSeconds()method to get the seconds of the given date. - Use the
setSeconds()method by passing the result returned bygetSeconds()plus the number of seconds you want to add. - The
setSeconds()method sets the value on the given date.
Here is an example that adds 10 seconds to the current date in JavaScript:
const today = new Date()
today.setSeconds(today.getSeconds() + 10)
console.log(today)
// Sat Sep 10 2022 22:47:41 GMT+0500 (Pakistan Standard Time)
The getSeconds() method returns a number between 0 and 59, denoting the number of seconds of the given date.
The setSeconds() method takes a number as input representing the number of seconds and sets the value on the date.
The above methods also take care of the situation where adding a specific number of seconds to date results in the next day, month, or year:
const date = new Date('2022-09-10T23:33:45.900Z')
date.setSeconds(date.getSeconds() + 30)
console.log(date.toUTCString())
// Sat, 10 Sep 2022 23:34:15 GMT
If you often need to add seconds to date, just create a reusable function that takes the number of seconds as a parameter and adds them to the current date:
Date.prototype.addSeconds = function (secs) {
const date = new Date(this.valueOf())
date.setSeconds(date.getSeconds() + secs)
return date
}
const date = new Date('2022-09-10T16:23:45.900Z')
// Add 45 Seconds
const result = date.addSeconds(45)
console.log(result.toUTCString())
// Sat, 10 Sep 2022 16:24:30 GMT
In the above example, we added a function called addSeconds() to the Date object prototype. This function will be available to all instances of Date for adding seconds to date.
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JS Nooby
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