计算Java中两个日期时间之间的天、时、分、秒差

import java.time.LocalDate;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;

public class DateTimeParser {

    public static void main(String[] args) {
        String failedDate = "Wednesday 02-October-2022";
        String failedTime = "11:51:1 PM";

        try {
            // 解析日期
            DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("EEEE dd-MMMM-yyyy");
            LocalDate date = LocalDate.parse(failedDate, dateFormatter);

            // 解析时间
            DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("h:m:s a");
            LocalTime time = LocalTime.parse(failedTime, timeFormatter);

            System.out.println("Date: " + date);
            System.out.println("Time: " + time);

        } catch (DateTimeParseException e) {
            System.err.println("Error parsing date or time: " + e.getMessage());
        }
    }
}

import java.time.Duration;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;

public class TimeDifferenceCalculator {

    public static String getLastRun(String failedDate, String failedTime) {
        try {
            // 解析日期和时间
            DateTimeFormatter dateFormatter = DateTimeFormatter.ofPattern("EEEE dd-MMMM-yyyy");
            LocalDate date = LocalDate.parse(failedDate, dateFormatter);

            DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("h:m:s a");
            LocalTime time = LocalTime.parse(failedTime, timeFormatter);

            // 指定时区
            ZoneId zone = ZoneId.of("Asia/Kolkata");

            // 组合日期和时间，并指定时区
            ZonedDateTime zdt = ZonedDateTime.of(date, time, zone);

            // 转换为Instant，以便计算时间差
            Instant then = zdt.toInstant();

            // 计算时间差
            Duration duration = Duration.between(then, Instant.now());

            // 提取天数、小时数、分钟数和秒数
            long days = duration.toDays();
            long hours = duration.toHours() % 24;
            long minutes = duration.toMinutes() % 60;
            long seconds = duration.getSeconds() % 60;

            // 格式化输出
            return String.format("Last service failed %d Days %d hours %d minutes %d seconds", days, hours, minutes, seconds);

        } catch (DateTimeParseException e) {
            return "Error parsing date or time: " + e.getMessage();
        }
    }

    public static void main(String[] args) {
        String failedDate = "Wednesday 02-October-2022";
        String failedTime = "11:51:1 PM";

        String result = getLastRun(failedDate, failedTime);
        System.out.println(result);
    }
}