Convert IST to GMT

 import java.util.*;

public class TimezoneConvertor {

    public static void main(String[] args) {

       

        Scanner sc = new Scanner(System.in);

        // Taking user input for minute, hour, day, month, and year

        int min = sc.nextInt();

        int hour = sc.nextInt();

        int day = sc.nextInt();

        int month = sc.nextInt();

        int year = sc.nextInt();

       

        // Close scanner to avoid resource leaks

        sc.close();

        // Adjust hours and minutes for IST to GMT conversion

        hour = hour + 5;

        min = min + 30;

        if (min >= 60) {

            hour = hour + 1;

            min = min - 60;

        }

        if (hour >= 24) {

            day = day + 1;

            hour = hour - 24;

        }

        // Define month lengths (adjust February based on leap year)

        int[] monthLengths = {31, isLeapYear(year) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

        // Adjust for days overflowing month length

        if (day > monthLengths[month - 1]) {

            day -= monthLengths[month - 1];

            month++;

        }

        // Adjust for months overflowing year

        if (month > 12) {

            month = month - 12;

            year++;

        }

        // Display the converted time in GMT

        System.out.println("year=" + year + " month=" + month + " day=" + day + " hour=" + hour + " min=" + min);

    }

    // Method to determine if a year is a leap year

    public static boolean isLeapYear(int year) {

        // A year is a leap year if it is divisible by 4 but not by 100, except if it's also divisible by 400.

        return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);

    }

}