$show=/label

Kotlin Program to Get Current Date and Time

SHARE:

A quick programming example to get the current date and time in kotlin. How to get the date and time in different formats.

1. Introduction


In this tutorial, You'll learn how to get the current date and time in kotlin. Further, you will see the examples how to get the default date and time, getting date in a specified pattern or format and also showing programs on locales.

Java : jdk1.8.0_251
Kotlin: 1.3

Kotlin Program to Get Current Date and Time


If you are new to Kotlin, you can set up Kotlin in Intelleji Idea.

2. Kotlin - Get Current Date and Time as Default Format


[package com.javaprogramto.kotlin.date.time

import java.time.LocalDateTime

fun main(args: Array<String>){

var timeNow = LocalDateTime.now();
println("Current time now in default format : $timeNow");

}]


Output:

[Current time now in default format : 2020-04-28T12:23:47.420]

Java comes with the LocalDateTime class which gives the methods to work with

Go through the Java 8 Date Time API Changes

In the above program, We are calling LocalDateTime.now() method that returns the instance of LocalDateTime. Whereas in Kotlin, you can assign any type to var. So it takes the correct object at compile time.

So, here, it won't give any compile-time errors.

By default, when you print the timeNow variable then it internally converts the data into String by invoking the toString() method.


3. Kotlin - Get Current Date and Time in a Pattern

Another, example to get the date as in our own or custom pattern.

[package com.javaprogramto.kotlin.date.time
import java.time.LocalDateTime
import java.time.format.DateTimeFormatter
fun main(args: Array<String>) {

val now = LocalDateTime.now()
val formatter = DateTimeFormatter.ofPattern("yyyy-MMM-dd HH:mm:ss.SSS")
val formatted = now.format(formatter)
println("Current Date and Time in a pattern is: $formatted")
}]


Output:

[Current Date and Time in a pattern is: 2020-Apr-28 12:40:10.472]

Execution Steps:


First, Created a date object with LocalDateTime.now() and storing the result into the variable "now".

Next, Created a pattern in which you want to get the date format. In this example, we have used "yyyy-MMM-dd HH:mm:ss.SSS"" this format. It indicates "year-[month-first-three-characters]-day hours:minutes:seconds.milliseconds"

Finally, Invoke the format() method on the current time "now" variable and pass formatter as now.format(formatter). As a result, it produces the output as String.

We can customize the format as you want.

below example to get the only date without the time part. The pattern plays a vital role here in formatting the desired date format.

[val newFomat = DateTimeFormatter.ofPattern("yyyy-MM-dd")
val onlyDateWithoutTime = current.format(newFomat)]
println("Getting only date from current date in a pattern is: $onlyDateWithoutTime")

Output:

[Getting only date from current date in a pattern is: 2020-04-28]

4. Kotlin - Get Current Date and Time Using Built-in API Formats or Constants

Another set of examples but here java api comes with set of predefined constants as formats.
DateTimeFormatter class has a set of constants defined in the class.


[package com.javaprogramto.kotlin.date.time
import java.time.LocalDateTime
import java.time.format.DateTimeFormatter
fun main(args: Array<String>) {

var timeNow = LocalDateTime.now()
var iso_format = DateTimeFormatter.BASIC_ISO_DATE;

var output = timeNow.format(iso_format);
println("Current in different formats : ")
println("ISO fomratted date $output")
}]



Output:

Current in different formats : 
ISO fomratted date 20200428

Another set of predefined constants.



[var newTimeNow = LocalDateTime.now()
// var iso_instant_format = DateTimeFormatter.ISO_INSTANT;// output = newTimeNow.format(iso_instant_format);// println("ISO instant fomratted date $output")// var iso_week_date_format = DateTimeFormatter.ISO_WEEK_DATE;

output = newTimeNow.format(iso_week_date_format);
println("ISO week date and time fomratted date $output")
// var iso_rfc_1123_date_format = DateTimeFormatter.RFC_1123_DATE_TIME; //output = newTimeNow.format(iso_rfc_1123_date_format); //println("ISO RFC 1123fomratted date $output")

var iso_time_format = DateTimeFormatter.ISO_DATE_TIME;
output = newTimeNow.format(iso_time_format);
println("ISO date and time fomratted date $output")
var iso_local_time_format = DateTimeFormatter.ISO_LOCAL_TIME;
output = newTimeNow.format(iso_local_time_format);
println("ISO local time fomratted date $output")]



Output:

ISO week date and time fomratted date 2020-W18-2
ISO date and time fomratted date 2020-04-28T13:11:21.295

ISO local time fomratted date 13:11:21.295



5. Kotlin - Get Current Date and Time Using Built-in API Formats or Constants


[package com.javaprogramto.kotlin.dates
import java.time.LocalDateTime
import java.time.format.DateTimeFormatter
import java.time.format.FormatStyle
fun main(args: Array<String>) {

var current = LocalDateTime.now()
var fullLocaleFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.FULL);
var fullLocaleTime = current.format(fullLocaleFormat)
println("Current Date and Time in full locale : $fullLocaleTime")
}]


Output:


[Current Date and Time in full locale : Tuesday, April 28, 2020]

In this program, we have used the Localize format style as FormatStyle.FULL

As well as, you can also use other formatting styles LONG, MEDIUM, and SHORT.



[var longLocaleFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.LONG);
var longLocaleTime = current.format(longLocaleFormat)
println("Current Date and Time in long locale : $longLocaleTime")
var mediumLocaleFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM);
var midiumLocaleTime = current.format(mediumLocaleFormat)
println("Current Date and Time in medium locale : $midiumLocaleTime")
var shortLocaleFormat = DateTimeFormatter.ofLocalizedDate(FormatStyle.SHORT);
var shortLocaleTime = current.format(shortLocaleFormat)
println("Current Date and Time in short locale : $shortLocaleTime")]



Output:

[Current Date and Time in long locale : April 28, 2020
Current Date and Time in medium locale : Apr 28, 2020
Current Date and Time in short locale : 4/28/20]

6. Conclusion


In conclusion, You've seen how to get the current time in Kotlin. And also seen getting the date in different formats.


All the code shown is over git hub.

Share the article, you can download the all Kotlin Example programs discussed as of now in all articles. It is completely free.

[lock]

[View on GitHub ##eye##]

[Download ##file-download##]

[/lock]

Get Current Date and Time in Kotlin

COMMENTS

BLOGGER

About Us

Author: Venkatesh - I love to learn and share the technical stuff.
Name

accumulo,1,ActiveMQ,2,Adsense,1,API,37,ArrayList,18,Arrays,24,Bean Creation,3,Bean Scopes,1,BiConsumer,1,Blogger Tips,1,Books,1,C Programming,1,Collection,8,Collections,37,Collector,1,Command Line,1,Comparator,1,Compile Errors,1,Configurations,7,Constants,1,Control Statements,8,Conversions,6,Core Java,149,Corona India,1,Create,2,CSS,1,Date,3,Date Time API,38,Dictionary,1,Difference,2,Download,1,Eclipse,3,Efficiently,1,Error,1,Errors,1,Exceptions,8,Fast,1,Files,17,Float,1,Font,1,Form,1,Freshers,1,Function,3,Functional Interface,2,Garbage Collector,1,Generics,4,Git,9,Grant,1,Grep,1,HashMap,2,HomeBrew,2,HTML,2,HttpClient,2,Immutable,1,Installation,1,Interview Questions,6,Iterate,2,Jackson API,3,Java,32,Java 10,1,Java 11,6,Java 12,5,Java 13,2,Java 14,2,Java 8,128,Java 8 Difference,2,Java 8 Stream Conversions,4,java 8 Stream Examples,12,Java 9,1,Java Conversions,14,Java Design Patterns,1,Java Files,1,Java Program,3,Java Programs,114,Java Spark,1,java.lang,4,java.util. function,1,JavaScript,1,jQuery,1,Kotlin,11,Kotlin Conversions,6,Kotlin Programs,10,Lambda,2,lang,29,Leap Year,1,live updates,1,LocalDate,1,Logging,1,Mac OS,3,Math,1,Matrix,6,Maven,1,Method References,1,Mockito,1,MongoDB,3,New Features,1,Operations,1,Optional,6,Oracle,5,Oracle 18C,1,Partition,1,Patterns,1,Programs,1,Property,1,Python,2,Quarkus,1,Read,1,Real Time,1,Recursion,2,Remove,2,Rest API,1,Schedules,1,Serialization,1,Servlet,2,Sort,1,Sorting Techniques,8,Spring,2,Spring Boot,23,Spring Email,1,Spring MVC,1,Streams,31,String,61,String Programs,28,String Revese,1,StringBuilder,1,Swing,1,System,1,Tags,1,Threads,11,Tomcat,1,Tomcat 8,1,Troubleshoot,26,Unix,3,Updates,3,util,5,While Loop,1,
ltr
item
JavaProgramTo.com: Kotlin Program to Get Current Date and Time
Kotlin Program to Get Current Date and Time
A quick programming example to get the current date and time in kotlin. How to get the date and time in different formats.
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjR1DS7CynmDrDNEBSukDPxH-iS33MHvEGqsZQaNdSMO5X5F52Wdv0BxYhmoJNvD1uC3MF5IVw-S8mdEND6r_y5FJVQyUAt_-U1-RYk8MWlQANcxRDI7oh3qVUtae46zHk8O1Yo_LWuQ0I/s640/Kotlin+Program+to+Get+Current+Date+and+Time.png
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjR1DS7CynmDrDNEBSukDPxH-iS33MHvEGqsZQaNdSMO5X5F52Wdv0BxYhmoJNvD1uC3MF5IVw-S8mdEND6r_y5FJVQyUAt_-U1-RYk8MWlQANcxRDI7oh3qVUtae46zHk8O1Yo_LWuQ0I/s72-c/Kotlin+Program+to+Get+Current+Date+and+Time.png
JavaProgramTo.com
https://www.javaprogramto.com/2020/04/kotlin-program-get-current-date-time.html
https://www.javaprogramto.com/
https://www.javaprogramto.com/
https://www.javaprogramto.com/2020/04/kotlin-program-get-current-date-time.html
true
3124782013468838591
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content