Date Calculator
Calculate date differences, add/subtract dates, work duration, and countdowns. Free online date calculator.
Frequently Asked Questions
What can the Date Calculator do?
The Date Calculator provides four functions: calculating the difference between two dates (in days, weeks, months, and years), adding or subtracting time from a date, calculating work duration (tenure), and counting down to a future event.
How is the date difference calculated?
The calculator counts the exact number of days between two dates, then derives weeks (days รท 7), months, and years. Month and year calculations account for calendar boundaries โ for example, January 15 to March 14 is 1 month and 27 days, not exactly 2 months.
Does the calculator account for leap years?
Yes, the calculator uses JavaScript's native Date object which correctly handles leap years. February 29 is included in day counts when applicable.
What is the Work Duration calculator?
It calculates the time between your hire date and a specified end date (or today), showing the duration in years, months, and days. This is useful for calculating job tenure, work experience, or service duration.
Is this tool free?
Yes, completely free with no sign-up required. All calculations happen in your browser โ no data is sent to any server.