Arabic Date Format (DD/MM/YYYY) Regex for Java

What this pattern does

This page provides a comprehensive, battle-tested regular expression for matching arabic date format (dd/mm/yyyy), ported and verified for Java. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your Java project — whether you're validating in a Spring Boot controller, a Jakarta EE service, or a standalone utility class.

Java Implementation

// Arabic Date Format (DD/MM/YYYY)
// ReDoS-safe | RegexVault — Localization > Date Formats

import java.util.regex.Pattern;

public class ArabicDateFormatDdmmyyyyValidator {
    private static final Pattern PATTERN =
        Pattern.compile("^(0?[1-9]|[12][0-9]|3[01])/(0?[1-9]|1[0-2])/((?:13|14|15)[0-9]{2}|(?:19|20)[0-9]{2})$");

    public static boolean validate(String input) {
        return PATTERN.matcher(input).matches();
    }

    // Example
    public static void main(String[] args) {
        System.out.println(validate("15/01/2024")); // true
    }
}

Test Cases

When to use this pattern

This pattern is drawn from the Localization > Date Formats category and carries a ReDoS-safe certification. That matters for Java developers because critical in Java applications since the JVM regex engine uses backtracking and is susceptible to ReDoS without careful pattern design. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

Most Arabic-speaking countries use the Gregorian calendar for civil purposes and the Hijri (Islamic lunar) calendar for religious purposes. The Hijri calendar currently has years starting with 14xx (1445 AH = 2023-24 CE). Saudi Arabia switched to Gregorian for official use in 2016.