Question

How to calculate the week number for a given date in Kotlin

Answer 1

import java.time.LocalDate
import java.time.temporal.WeekFields
import java.util.Locale

fun getWeekNumber(date: LocalDate): Int {
    val weekFields = WeekFields.of(Locale.getDefault())
    
    return date.get(weekFields.weekOfWeekBasedYear())
}

fun main() {
    val date = LocalDate.of(2025, 3, 15) 
    val weekNumber = getWeekNumber(date)
    
    println("The week number is: $weekNumber")
}

  
     
/*
run:
  
The week number is: 11
 
*/

 

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