Kotlin milliseconds to time

Kotlin Program to Convert Milliseconds to Minutes and Seconds

Example 1: Convert milliseconds to minutes and seconds individually

import java.util.concurrent.TimeUnit fun main(args: Array) < val milliseconds: Long = 1000000 // long minutes = (milliseconds / 1000) / 60; val minutes = TimeUnit.MILLISECONDS.toMinutes(milliseconds) // long seconds = (milliseconds / 1000); val seconds = TimeUnit.MILLISECONDS.toSeconds(milliseconds) println("$milliseconds Milliseconds = $minutes minutes") println("Or") println("$milliseconds Milliseconds = $seconds seconds") >

1000000 Milliseconds = 16 minutes Or 1000000 Milliseconds = 1000 seconds

In the above program, we’ve converted given milliseconds to minutes using toMinutes() method. Likewise, we used toSeconds() method to convert it to seconds.

We can also use basic math to convert it to minutes and seconds.

Seconds = Milliseconds / 1000

Minutes = Seconds / 60 or Minutes = (Milliseconds / 1000) / 60

Example 2: Convert Milliseconds to Minutes and Seconds

1000000 Milliseconds = 16 minutes and 40 seconds.

In the above program, we’ve used formula:

Minutes = (Milliseconds / 1000) / 60 And Remaining Seconds = (Milliseconds / 1000) % 60

First, we calculate the minutes by simply dividing it to seconds and then to minutes by dividing it with 60.

Then, we calculate the remaining seconds by dividing it to seconds and getting the remainder when divided by 60.

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Kotlin Time Conversion: How to Convert Milliseconds to Minutes and Seconds

Learn how to convert time in milliseconds to minutes and seconds using Kotlin. Get tips and best practices to avoid common issues with time conversion in Kotlin and Java.

As a software developer, you must have encountered situations where you need to convert time in milliseconds to other time units such as minutes and seconds. Kotlin, a popular programming language, provides a simple and effective way to accomplish this task. In this blog post, I will provide a comprehensive guide on how to convert time in milliseconds to minutes, seconds, and other time units using Kotlin.

Introduction

Kotlin is a statically typed programming language that runs on the Java Virtual Machine (JVM). It was developed by JetBrains in 2011 and has since gained popularity among developers due to its concise and expressive syntax as well as its interoperability with Java. Time conversion is an essential aspect of software development, and Kotlin provides a simple and effective way to convert time in milliseconds to minutes, seconds, and other time units. In this blog post, we will explore how to convert time in milliseconds to different time units using Kotlin. We will also discuss the advantages of using Kotlin for time conversion and provide tips and best practices for avoiding common issues.

Conversion of Milliseconds to Minutes and Seconds in Kotlin

Kotlin provides a simple way to convert milliseconds to minutes and seconds using basic math operations. The formula used to convert milliseconds to minutes is minutes = (milliseconds/1000)/60 . Similarly, the formula used to convert milliseconds to seconds is seconds = milliseconds/1000 . Here is an example of how to use these formulas in Kotlin:

fun convertMillisecondsToMinutesAndSeconds(milliseconds: Long)  val minutes = (milliseconds/1000)/60 val seconds = (milliseconds/1000) % 60 println("$milliseconds milliseconds = $minutes minutes, $seconds seconds") >convertMillisecondsToMinutesAndSeconds(120000) // Output: 120000 milliseconds = 2 minutes, 0 seconds 

As you can see from the example above, converting milliseconds to minutes and seconds in Kotlin is straightforward.

Conversion of Milliseconds to Minutes and Seconds in Java

Java can also be used to convert milliseconds to minutes and seconds. We will explore how to convert milliseconds to minutes and seconds individually, as well as together. Here is an example of how to convert milliseconds to minutes and seconds individually in Java:

public static void convertMillisecondsToMinutesAndSeconds(long milliseconds)  long minutes = (milliseconds/1000)/60; long seconds = (milliseconds/1000) % 60; System.out.println(milliseconds + " milliseconds = " + minutes + " minutes, " + seconds + " seconds"); >convertMillisecondsToMinutesAndSeconds(120000); // Output: 120000 milliseconds = 2 minutes, 0 seconds 

To convert milliseconds to minutes and seconds together, you can use the TimeUnit class in Java. Here is an example of how to use TimeUnit to convert milliseconds to minutes and seconds in Java:

public static void convertMillisecondsToMinutesAndSeconds(long milliseconds)  long minutes = TimeUnit.MILLISECONDS.toMinutes(milliseconds); long seconds = TimeUnit.MILLISECONDS.toSeconds(milliseconds) - TimeUnit.MINUTES.toSeconds(minutes); System.out.println(milliseconds + " milliseconds = " + minutes + " minutes, " + seconds + " seconds"); >convertMillisecondsToMinutesAndSeconds(120000); // Output: 120000 milliseconds = 2 minutes, 0 seconds 

Conversion of Minutes to Milliseconds in Java

In Java, conversion of minutes to milliseconds can be done using basic math. The formula used to convert minutes to milliseconds is milliseconds = minutes * 60 * 1000 . Here is an example of how to use this formula in Java:

public static long convertMinutesToMilliseconds(long minutes)  return minutes * 60 * 1000; >System.out.println(convertMinutesToMilliseconds(2)); // Output: 120000 

Using Calendar.getInstance() to Create a Calendar Object in Kotlin

Calendar.getInstance() can be used to create a Calendar with the current date/time in the JVM default timezone. We will discuss how to use Calendar.getInstance() in Kotlin to create a Calendar object. Here is an example of how to use Calendar.getInstance() in Kotlin:

fun createCalendar()  val calendar = Calendar.getInstance() println(calendar.time) >createCalendar() // Output: Sat Oct 09 21:34:38 GMT+05:30 2021 

Using Duration in Kotlin for Time Conversion

Duration in Kotlin can be split into days, hours, minutes, seconds, and nanoseconds. We will explore how to use the Duration class in Kotlin for time conversion. Here is an example of how to use Duration in Kotlin:

fun convertMillisecondsToDuration(milliseconds: Long)  val duration = Duration.ofMillis(milliseconds) val minutes = duration.toMinutes() val seconds = duration.toSeconds() % 60 println("$milliseconds milliseconds = $minutes minutes, $seconds seconds") >convertMillisecondsToDuration(120000) // Output: 120000 milliseconds = 2 minutes, 0 seconds 

Other code samples for Kotlin time conversion

In Kotlin , kotlin get time milis hour minutes code sample

 fun getTimeWithMilis(millis: Long): String

Conclusion

In conclusion, Kotlin provides a simple and effective way to convert time in milliseconds to minutes, seconds, and other time units. Java can also be used for time conversion, but the modern Java date and time API should be used instead of the outdated Calendar class. Tips and best practices for time conversion in Kotlin and Java were provided to help avoid common issues. By following the guidance provided in this blog post, software developers can effectively convert time in milliseconds to minutes, seconds, and other time units using Kotlin and Java.

Frequently Asked Questions — FAQs

What is time conversion and why is it important in software development?

Time conversion is the process of converting time from one unit to another. It is important in software development to ensure accurate time calculations and to display time in a format that is user-friendly.

Can milliseconds be converted directly to minutes and seconds in Kotlin?

Yes, Kotlin provides a simple way to convert milliseconds to minutes and seconds using basic math operations.

Can Java be used for time conversion as well?

Yes, Java can also be used for time conversion. However, the modern Java date and time API should be used instead of the outdated Calendar class.

What are some common issues to avoid when converting time in Kotlin and Java?

Common issues to avoid include using outdated libraries and classes, not considering timezones, and not properly handling leap years and daylight saving time.

What is the Duration class in Kotlin and how can it be used for time conversion?

The Duration class in Kotlin can be used to split time into days, hours, minutes, seconds, and nanoseconds. It provides a more flexible and precise way to handle time than basic math operations.

What are some best practices for time conversion in Kotlin and Java?

Best practices include using the latest libraries and classes, properly handling timezones, considering daylight saving time and leap years, and thoroughly testing time calculations.

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How to convert milliseconds to date format in Android using Kotlin?

This example demonstrates how to convert milliseconds to date format in Android using Kotlin.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

Step 3 − Add the following code to src/MainActivity.kt

import android.os.Bundle import android.widget.TextView import androidx.appcompat.app.AppCompatActivity import java.text.SimpleDateFormat class MainActivity : AppCompatActivity() < override fun onCreate(savedInstanceState: Bundle?) < super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title = "KotlinApp" val textView: TextView = findViewById(R.id.textView) val simpleDateFormat = SimpleDateFormat("dd/MM/yyyy") val dateString = simpleDateFormat.format(9897546853323L) textView.text = String.format("Date: %s", dateString) >>

Step 4 − Add the following code to androidManifest.xml

Let’s try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project’s activity files and click the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen

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