Leap Year Calculator

Check if a year is a leap year or find the next leap year with our free calculator. Learn about leap year rules and why we need them.

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Date & Time Tools

Calculate the number of days between two dates or add/subtract days from a date.

Calculation Type

Start Date

End Date

Include end date in calculation

Result:

1 day

Network

Get information about an IP address

Network

Test connectivity to a host

Network

View HTTP headers for a URL

Coding

Encode and decode HTML entities

Browse calendar, view holidays and plan events with our interactive online calendar tool. Free, easy-to-use calendar with customizable holidays.

Calculate the number of days between two dates or add/subtract days from a date. Free online days calculator tool.

Calculate the exact time until future events or deadlines. Find out how many days, hours, minutes until a specific date and time.