Russian Date Format (DD.MM.YYYY) Regex for JavaScript

What this pattern does

This page provides a well-structured, multi-part regular expression for matching russian 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

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

const russianDateFormatDdmmyyyyRegex = /^(0?[1-9]|[12][0-9]|3[01])\.(0?[1-9]|1[0-2])\.((?:19|20)[0-9]{2})$/;

function validateRussianDateFormatDdmmyyyy(input: string): boolean {
  return russianDateFormatDdmmyyyyRegex.test(input);
}

// Example
console.log(validateRussianDateFormatDdmmyyyy("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

DD.MM.YYYY is the standard format in Russia, Belarus, Ukraine, Kazakhstan, and other post-Soviet states. The dot separator is a reliable locale indicator for this region. Capture groups: 1=day, 2=month, 3=year.