Java provides the java.time package for working with dates and times. This package replaces the old java.util.Date and java.util.Calendar classes.

The java.time package includes the following main classes:

• LocalDate represents a date (year, month, day) without a time.
• LocalTime represents a time (hour, minute, second, nanosecond) without a date.
• LocalDateTime represents a date and time without a time zone.
• ZonedDateTime represents a date and time with a time zone.
• Duration represents a duration (e.g., “2 hours and 30 minutes”)
• Period represents a period (e.g., “2 years and 3 months”)

Here’s an example of how you can use these classes to perform some common tasks:

import java.time.LocalDate;
import java.time.LocalTime;
import java.time.LocalDateTime;
import java.time.ZonedDateTime;
import java.time.Duration;
import java.time.Period;

public class Main {
    public static void main(String[] args) {
        // Get the current date and time
        LocalDateTime current = LocalDateTime.now();
        System.out.println("Current date and time: " + current);

        // Get the current date
        LocalDate date = current.toLocalDate();
        System.out.println("Current date: " + date);

        // Get the current time
        LocalTime time = current.toLocalTime();
        System.out.println("Current time: " + time);

        // Get the current date and time in a specific time zone
        ZonedDateTime zoned = ZonedDateTime.now();
        System.out.println("Current date and time in time zone: " + zoned);

        // Get the difference between two dates and times
        LocalDateTime past = LocalDateTime.of(2000, 1, 1, 0, 0, 0);
        Duration duration = Duration.between(past, current);
        System.out.println("Duration: " + duration);

        // Get the difference between two dates
        LocalDate pastDate = LocalDate.of(2000, 1, 1);
        Period period = Period.between(pastDate, date);
        System.out.println("Period: " + period);
    }
}