OffSetDate Time getDayOfMonth() method in Java with examples

The day-of-month attribute is obtained through the Java OffsetDateTime class's getDayOfMonth() function.

Syntax:

Parameter: There are no parameters that are accepted by this method.

Return Value: It returns back a given month's day, which can range from 1 to 31.

Example 1:

An OffsetDateTime instance is initialized with the given date and time (June 26, 2024, at 09:30 UTC) in the code that is given. The day of the month is then obtained from this date-time instance using the getDayOfMonth() method. The value remains unchanged in the dayOfMonth variable and denotes the day of the month (in this example, 26). The program then displays this value together with a message showing the day of the specified month. In order to extract and display the day of the month from a given date-time, this example shows how to use OffsetDateTime's getDayOfMonth() method in a basic approach.

Implementation:

FileName: GetDayMonthExample1.java

 
import java.time.OffsetDateTime;
import java.time.ZoneOffset;
import java.io.*;
import java.util.*;
public class GetDayMonthExample1
{
    public static void main(String[] args) 
    {
        // initilaize and Create an OffsetDateTime instance
        OffsetDateTime dateTime = OffsetDateTime.of(2024, 6, 26, 9, 30, 0, 0, ZoneOffset.UTC);
        // Obtain the day of the month.
        int dayOfMonth = dateTime.getDayOfMonth();
        // The day of the month is to be displayed 
        System.out.println("The Day of the given month is: " + dayOfMonth);
    }
}   

Output:

 
The Day of the given month is: 26

Example 2:

The code given uses the now function with the proper ZoneOffset to construct instances of OffsetDateTime for the UTC and EST time zones. Afterwards, it uses the getDayOfMonth method to extract the day of the month from each of these date-time instances. In both the UTC and EST time zones, the code prints the date, time, and day of the month at the end. This shows how to work with various time zones in Java and extract particular date-time components.

Implementation:

FileName: GetDayMonthExample2.java

 
import java.time.OffsetDateTime;
import java.time.ZoneOffset;
import java.io.*;
import java.util.*;
public class GetDayMonthExample2 
{
    public static void main(String[] args) 
    {
        // Make instances of OffsetDateTime for various time zones.
        OffsetDateTime dTUTC = OffsetDateTime.now(ZoneOffset.UTC);
        OffsetDateTime dTEST = OffsetDateTime.now(ZoneOffset.ofHours(-5));
        // Find the month's first day for every time zone and print it.
        System.out.println("The UTC date and time is given by " + dTUTC + " and the Day of the month is: " + dTUTC.getDayOfMonth());
        System.out.println("The EST date and time is given by " + dTEST + " and the Day of the month is: " + dTEST.getDayOfMonth());
    }
}   

Output:

 
The UTC date and time is given by 2024-06-26T17:57:09.690173598Z and the Day of the month is: 26
The EST date and time is given by 2024-06-26T12:57:09.690297391-05:00 and the Day of the month is: 26

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