Calculate the Difference Between Two Dates
This date and time calculator is a free tool that lets you find the exact duration between any two dates. Simply enter a "From" date and a "To" date — in any order — and instantly get the difference broken down into years, months, and days, plus totals in months, weeks, and days. Whether you need a time and date calculator for a project deadline or a quick calculator time between two dates, this tool has you covered.
Date Tool
Date Difference Calculator
Pick a start date and an end date to find the exact duration between them in years, months, and days
Please enter two valid dates. The end date must be the same as, or after, the start date
0 yrs 0 mo 0 days
0Total Weeks
0Total Days
0Total Months
The interactive date and time calculator appears here
When Would You Use a Date and Time Calculator?
Calculating the exact number of days, months, or years between two dates is useful in many everyday situations, such as:
- Working out how many days are left until a deadline or project milestone using a reliable time calculation tool
- Calculating the exact length of an employment period, contract, or lease with a date time duration calculator
- Finding out how long ago a specific event happened, or calculating difference in time since a milestone
- Measuring the duration between a start date and an end date for planning or reporting
- Running a quick calculator for time difference between appointments or shifts
- Using it as an online time and date calculator to add time to a date, or to convert hours to minutes for precise scheduling
How Does the Date and Time Calculator Work?
- Enter the first date (day, month, and year)
- Enter the second date (day, month, and year)
- Click "Calculate Difference" to see the result instantly
You'll get the exact duration in years, months, and days, along with totals in months, weeks, and days. The calculator works regardless of which date comes first — it automatically figures out the correct order and shows you the time between two dates calculated precisely.
Frequently Asked Questions
Does it matter which date I enter first?
No. The calculator automatically detects which of the two dates comes earlier and calculates the duration accordingly, so you can enter them in any order.
Can I use this to calculate my age?
Yes, you can use it for that by entering your date of birth as the first date and today's date as the second. However, for a dedicated age breakdown with more detailed stats, we recommend using our Age Calculator instead.
Can this tool calculate time, not just dates?
Yes, as a full date and time calculator, it can also handle time-based calculations such as the difference between two times, or help you convert hours to minutes for accurate results.
Can I add time to a date using this calculator?
Yes, this tool works both ways — you can find the gap between two dates, or use it to add time to date and see what date you land on after adding a specific number of days or months.
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