Leap Year Checker
Time & Date · Free Online Tool
Check if a year is a leap year and explain the rules.
2026 is not a leap year
February has 28 days.
Nearby Years
2018
Common
2019
Common
2020
Leap
2021
Common
2022
Common
2023
Common
2024
Leap
2025
Common
2026
Common
2027
Common
2028
Leap
2029
Common
2030
Common
2031
Common
2032
Leap
2033
Common
2034
Common
Gregorian Rules
Divisible by 4, but not 100 — unless also 400.
Instant Result
Updates the moment you type a new year.
Context Grid
Shows ±8 surrounding years with their leap status.
How to Use Leap Year Checker
- 1Enter the time, date, or value you want to convert.
- 2Select the target format or timezone.
- 3The tool calculates the result instantly.
- 4Copy the converted value for your use.
Features
- ✓100% free — no signup, no subscription, no ads
- ✓Runs entirely in your browser — data never leaves your device
- ✓Fast and lightweight — instant results
- ✓Cross-platform — works on desktop, tablet, and mobile
Frequently Asked Questions
What timezone is used by default?
The Timestamp Converter uses UTC by default but can display results in your local timezone.
Can I convert timestamps from different programming languages?
Yes, the tool supports Unix timestamps (seconds and milliseconds), ISO 8601, and various date string formats.
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Learn the concept
Learn the concept
Understand the programming ideas behind this tool.