Indian Date Format (DD-MM-YYYY with hyphen) Regex for Go

What this pattern does

This page provides a well-structured, multi-part regular expression for matching indian date format (dd-mm-yyyy with hyphen), ported and verified for Go. A rigorously tested regex reduces debugging time and protects your application from edge-case failures. The snippet below is ready to drop into your Go project — whether you're validating in a Gin handler, a gRPC service, or a command-line tool.

Go Implementation

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

package validation

import "regexp"

var indianDateFormatDdmmyyyyWithHyphenRe = regexp.MustCompile(`^(0?[1-9]|[12][0-9]|3[01])-(0?[1-9]|1[0-2])-((?:19|20)[0-9]{2})$`)

func ValidateIndianDateFormatDdmmyyyyWithHyphen(s string) bool {
    return indianDateFormatDdmmyyyyWithHyphenRe.MatchString(s)
}

// Example
// fmt.Println(ValidateIndianDateFormatDdmmyyyyWithHyphen("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 Go developers because Go's RE2 engine is inherently safe from catastrophic backtracking, but this pattern has been additionally verified for correctness. 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

Capture groups: 1=day, 2=month, 3=year. India widely uses DD-MM-YYYY and DD/MM/YYYY interchangeably. Officially, India has adopted ISO 8601 for government communications since 2004, but the DD-MM-YYYY format persists widely.