Date (MM/DD/YYYY) Regex Pattern
Validates dates in US format (MM/DD/YYYY). Ensures month is 01-12 and day is 01-31.
Live Regex Tester
Pattern Breakdown
Code Examples
JavaScript
const regex = /^(0[1-9]|1[0-2])\/(0[1-9]|[12]\d|3[01])\/\d{4}$/;
const test = "03/07/2026";
console.log(regex.test(test)); // true
// Extract matches
const matches = test.match(regex);
console.log(matches);Python
import re
pattern = r'^(0[1-9]|1[0-2])\/(0[1-9]|[12]\d|3[01])\/\d{4}$'
test = "03/07/2026"
match = re.search(pattern, test)
print(match) # Found!Go
package main
import (
"fmt"
"regexp"
)
func main() {
re := regexp.MustCompile(`^(0[1-9]|1[0-2])\/(0[1-9]|[12]\d|3[01])\/\d{4}$`)
fmt.Println(re.MatchString("03/07/2026")) // true
}Common Use Cases
Match Examples
| Input | Result |
|---|---|
| 03/07/2026 | Match |
| 13/07/2026 | No Match |
About the Date (MM/DD/YYYY) Regex
Validates dates in US format (MM/DD/YYYY). Ensures month is 01-12 and day is 01-31.
Regular expressions (regex) are powerful pattern matching tools used across virtually all programming languages. The date (mm/dd/yyyy) pattern is classified as intermediate difficulty in the date & time category. It works in all major programming languages.
When using this regex, always consider edge cases and test thoroughly with real-world data. Use the interactive tester above to validate the pattern against your specific inputs before deploying to production.
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Frequently Asked Questions
What is the Date (MM/DD/YYYY) regex pattern?
Validates dates in US format (MM/DD/YYYY). Ensures month is 01-12 and day is 01-31.
How do I use the Date (MM/DD/YYYY) regex?
Use the pattern /^(0[1-9]|1[0-2])\/(0[1-9]|[12]\d|3[01])\/\d{4}$/ in your code. In JavaScript: new RegExp('^(0[1-9]|1[0-2])\/(0[1-9]|[12]\d|3[01])\/\d{4}$', ''). Test it above with your own input.
What does this Date (MM/DD/YYYY) regex match?
This pattern matches: "03/07/2026". It does NOT match: "13/07/2026". US date format validation, form inputs, data parsing.
Is the Date (MM/DD/YYYY) regex beginner-friendly?
This pattern is rated Intermediate. It uses some advanced features like character classes and quantifiers.
What languages support the Date (MM/DD/YYYY) regex?
This pattern works in all major programming languages including JavaScript, Python, Java, C#, Go, Ruby, PHP, and more. Syntax may vary slightly between regex engines.
Can I modify the Date (MM/DD/YYYY) regex for my use case?
Yes! Use the interactive tester above to modify the pattern and test with your own data. Common modifications include making it case-insensitive (add 'i' flag), matching globally (add 'g' flag), or adjusting character classes.
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