import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;

public class Main {
	public static void main(String[] args) {
		// Let's assume 2021-06-26T23:35:50 is the local date-time in India
		LocalDateTime ldtIndia = LocalDateTime.parse("2021-06-26T23:35:50");
		Instant instant = ldtIndia.atZone(ZoneId.of("Asia/Kolkata")).toInstant();
		long millis = instant.toEpochMilli();
		System.out.println(millis);
	}
}