SemperVideo

a.txt

2021-09-26 15:08:35,22.1.12.1,333389,connected
2021-09-26 15:10:35,22.1.12.1,333389,connected
 

Main.kt

import java.io.File
import java.time.Duration
import java.time.LocalDateTime
import java.time.format.DateTimeFormatter

fun readFileAsLinesUsingBufferedReader(fileName: String): List<String>
        = File(fileName).bufferedReader().readLines()

fun main(args: Array<String>) {
    val path="" //PATH
    val lines =  readFileAsLinesUsingBufferedReader(path)

    val first =lines.get(0);
    val second =lines.get(1);

    val formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    val onlyDateFirst=first.split(",")[0];
    val onlyDateSecond=second.split(",")[0];

    val st = LocalDateTime.parse(onlyDateFirst, formatter);
    val et = LocalDateTime.parse(onlyDateSecond, formatter);
    val diff: Duration = Duration.between(st, et)
   
    println( diff.toMinutes())
    println( diff.toHours())
    println( diff.toDays())

}