Dates & Timesflags: g

US Date Format (MM/DD/YYYY)

Match US-style dates in MM/DD/YYYY format with range validation.

Try it in RegexPro →

Available in

JavaScript / ECMAScript code

jsJavaScript
const re = new RegExp("(?:0[1-9]|1[0-2])\\/(?:0[1-9]|[12]\\d|3[01])\\/\\d{4}", "g");
const input = "01/15/2024";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).

Pattern

regexengine-agnostic
(?:0[1-9]|1[0-2])\/(?:0[1-9]|[12]\d|3[01])\/\d{4}   (flags: g)

Raw source: (?:0[1-9]|1[0-2])\/(?:0[1-9]|[12]\d|3[01])\/\d{4}

How it works

Month alternation covers 01-12, day covers 01-31, year is any 4-digit number. Slashes are literal separators escaped with \.

Examples

Input

01/15/2024

Matches

  • 01/15/2024

Input

12/31/1999

Matches

  • 12/31/1999

Input

13/01/2024

No match

Common use cases

  • US form date field validation
  • Spreadsheet date column parsing
  • Legacy system data migration
  • Document date extraction

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