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Followings is the use of characters in date formatting patterns.
| Sr.No. | Class & Description |
|---|---|
| 1 |
G To display Era. |
| 2 |
y To display Year. Valid values yy, yyyy. |
| 3 |
M To display Month. Valid values MM, MMM or MMMMM. |
| 4 |
d To display day of month. Valid values d, dd. |
| 5 |
h To display hour of day (1-12 AM/PM). Valid value hh. |
| 6 |
H To display hour of day (0-23). Valid value HH. |
| 7 |
m To display minute of hour (0-59). Valid value mm. |
| 8 |
s To display second of minute (0-59). Valid value ss. |
| 9 |
S To display milliseconds of minute (0-999). Valid value SSS. |
| 10 |
E To display Day in week (e.g Monday, Tuesday etc.) |
| 11 |
D To display Day in year (1-366). |
| 12 |
F To display Day of week in month (e.g. 1st Thursday of December). |
| 13 |
w To display Week in year (1-53). |
| 14 |
W To display Week in month (0-5) |
| 15 |
a To display AM / PM |
| 16 |
k To display Hour in day (1-24). |
| 17 |
K To display Hour in day, AM / PM (0-11). |
| 18 |
z To display Time Zone. |
Example
In this example, we”re formatting dates based on different patterns.
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class I18NTester {
public static void main(String[] args) throws ParseException {
String pattern = "dd-MM-yy";
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
Date date = new Date();
System.out.println(simpleDateFormat.format(date));
pattern = "MM-dd-yyyy";
simpleDateFormat = new SimpleDateFormat(pattern);
System.out.println(simpleDateFormat.format(date));
pattern = "yyyy-MM-dd HH:mm:ss";
simpleDateFormat = new SimpleDateFormat(pattern);
System.out.println(simpleDateFormat.format(date));
pattern = "EEEEE MMMMM yyyy HH:mm:ss.SSSZ";
simpleDateFormat = new SimpleDateFormat(pattern);
System.out.println(simpleDateFormat.format(date));
}
}
Output
It will print the following result.
07-06-24 06-07-2024 2024-06-07 16:04:40 Friday June 2024 16:04:40.866+0530
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