🗓️ Section 1: Calendar Explorer
Pick two dates in 2026 to inspect the exact duration between them and see how time breaks down month by month!
🔍 Investigation Setup
Standard duration counts the nights between dates (e.g., 5 March to 7 March = 2 days). Turning this on counts both the start day and end day inclusive (3 days).
💡 Detective Case Breakdown
📜 Detective's Secret Rule: Month Lengths
"30 days has September, April, June, and November.
All the rest have 31, except February alone,
Which has 28 days clear, and 29 in each leap year!"
🔬 Section 2: Leap Year Lab
Discover how leap years work, check any year instantly, and test your speed in the Spot the Leap Year mini-game!
🔍 Leap Year Inspector
Enter any year to test if it's a leap year:
📍 Nearest Leap Years:
🗓️ February Visual Switcher
Watch February change its size based on the year status! 💡 Note: 2026 is not a leap year, so February has 28 days.
🎮 Spot the Leap Year!
Test year: 2024. Is this year a Leap Year (divisible by 4)?
📝 Section 3: Practice Cases with Detective Feedback
Solve date cases step by step. If you make a mistake, our Detective Engine will pinpoint your misconception!
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🏆 Section 4: Detective Challenge Quiz
Take the 10-question final exam to earn your Detective Badge and star rating!