❮❮ PREV NEXT ❯❯

KOTLIN - DATE & TIME

Date and Time is one of the important topic in any programming language. In Kotlin we can import the module named java.time.LocalDateTime from java to work with Date and Time.

Let us start with the below example.

Example :

import java.time.LocalDateTime

fun main(args: Array<String>) {

    val x = LocalDateTime.now()

    println("Current Date and Time is: "+x)
}

Output :

2020-12-10T18:59:37.476059

Now, if we dissect the output,

So, with the below statement,

val now = LocalDateTime.now()

We get an object, x that has Year, Month, Day, Hour, Minute, Second and Microsecond.

So, you got the date in clubbed format. Now, what if you want everything separately.

Well! Kotlin provides that way as well.

Example :

import java.time.LocalDateTime

fun main(args: Array) {

    val x = LocalDateTime.now()
    var year = x.year
    var month = x.month
    var day = x.dayOfMonth
    var hour = x.hour
    var minute = x.minute
    var second = x.second
    var nanoSecond = x.nano

    println("The full format is "+x)
    println("The year is "+year)
    println("The month is "+month)
    println("The day is "+day)
    println("The hour is "+hour)
    println("The minute is "+minute)
    println("The second is "+second)
    println("The nanosecond is "+nanoSecond)
}

Output :

The full format is 2020-12-10 19:18:18.228909
The year is 2020
The month is December
The day is 10
The hour is 19
The minute is 18
The second is 18
The nanosecond is 228909

Now, if you look at the above output, we have separated the clubbed formatted date.

To display the year, you need to invoke x.year.

year = x.year

Similar, logic applies for Month, Day, Hour, Minute, Second and Nanosecond.

Now, let us see how to work with Date and Time separately.

Working with Dates

To work only with Dates. We can only import date class from the datetime module.

Let us look at the below example.

Example :

import java.time.LocalDateTime
import java.time.format.DateTimeFormatter

fun main(args: Array) {

    val x = LocalDateTime.now()
    val todayFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd")
    val todayFormatted = x.format(todayFormatter)

    println("Today's date is : "+todayFormatted)
}

Output :

Today's date is 2020-12-10

So, in the above example, we have just imported the LocalDateTime class and DateTimeFormatter from java.

import java.time.LocalDateTime
import java.time.format.DateTimeFormatter

Next, we have specified the pattern(As in how the date would be displayed),

val todayFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd")

Then we have used the format() function to get the formatted date.

val todayFormatted = x.format(todayFormatter)

Finally, we have used the print statement to print the date,

println("Today's date is : "+todayFormatted)

And if you see the output.

Today's date is 2020-12-10

❮❮ PREV NEXT ❯❯