Question

How to create a list of dates between a start and end date in Kotlin

Answer 1

import java.time.LocalDate

fun generateDates(start: LocalDate, end: LocalDate): List<LocalDate> {
    if (start > end) return emptyList()

    val dates = mutableListOf<LocalDate>()
    var current = start

    while (!current.isAfter(end)) {
        dates += current
        current = current.plusDays(1)
    }

    return dates
}

fun main() {
    val start = LocalDate.of(2026, 1, 3)
    val end   = LocalDate.of(2026, 1, 12)

    val dates = generateDates(start, end)

    println("Generated ${dates.size} dates:")
    dates.forEach { println(it) }
}



/*
run:

Generated 10 dates:
2026-01-03
2026-01-04
2026-01-05
2026-01-06
2026-01-07
2026-01-08
2026-01-09
2026-01-10
2026-01-11
2026-01-12

*/

 

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