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

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 JavaScript. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your JavaScript project — whether you're validating in an Express middleware, a Next.js API route, or a client-side form.

Javascript Implementation

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

const arabicDateFormatDdmmyyyyRegex = /^(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})$/;

function validateArabicDateFormatDdmmyyyy(input: string): boolean {
  return arabicDateFormatDdmmyyyyRegex.test(input);
}

// Example
console.log(validateArabicDateFormatDdmmyyyy("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 JavaScript developers because especially critical in long-running Node.js event loops where a ReDoS vulnerability can block the entire process. 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.