Date Validation & Leap Year / Weekend Checker

Advanced date validation tools. Check if a year is a leap year, determine if a date falls on a weekend, and validate date strings.

About This Tool

Validate calendar dates, check whether a year is a leap year, verify weekend/weekday status, and inspect date formats.

Key Features & Benefits

  • Leap year verification.
  • Day of the week identifier (Monday to Sunday).
  • Validates date string formats.

How to Use

  1. Enter any date or year.
  2. View validation results and calendar properties.

Frequently Asked Questions (FAQs)

How is a leap year determined?

A year is a leap year if divisible by 4, except century years which must be divisible by 400.