Online Age Calculator

Calculate your age accurately with our free online age calculator. Find out your age in years, months, days, hours, minutes, and seconds! And also find out how many months, days, hours, minutes and seconds are left until your next birthday.

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Your date of birth

Start Date

End Date

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Correct calculation

This tool calculates the correct age by considering leap years and the number of days in the month.

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Time Duration

With this tool, you can find the exact time difference between any two dates. This is very useful for many people.

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Next Birthday

With this tool you can find out how many months, days, hours, and minutes are left until your next birthday.

FAQ: Frequently Asked Questions

What does this Days Calculator do?

This advanced days calculator calculate time between two dates with multiple calculation modes. It can count total calendar days, business days, or custom days excluding holidays. Perfect for project timelines, work schedules, legal deadlines, or tracking events. The tool provides a detailed breakdown including weekends and holidays in your selected date range.

How accurate are the calculations?

The days calculator provides mathematically precise results by accounting for all calendar variations including leap years. It follows Gregorian calendar rules and handles date ranges up to 99 years accurately. Business day calculations strictly adhere to Monday-Friday work weeks, making it reliable for professional and personal scheduling needs.

Can I exclude specific holidays?

Yes, the advanced Days Calculator version features a holiday management system. You can add custom holidays which are automatically excluded when enabled. The system remembers added holidays during your session and shows them in a visual list that can be edited before final calculation with Days Calculator tool.

Does it account for leap years?

Absolutely. The Days Calculator automatically factors in leap years (including February 29) for any date range. It correctly handles century years (like 2100 which isn’t a leap year) according to Gregorian calendar rules, ensuring complete chronological accuracy regardless of your selected time period.

What's the difference between calendar and business days?

Calendar days count every consecutive day between dates. Business days only include Monday-Friday, excluding weekends. Our calculator shows both totals and lets you choose between them. Business mode is ideal for work projects, while calendar days work better for events or personal milestones.

Can I calculate future dates?

Yes, the tool works for past, present and future dates equally well. You can calculate countdowns to future events or determine durations for upcoming projects. The future date calculation maintains the same precision as historical date computations.

Is there a date range limit?

The calculator efficiently handles ranges up to 99 years. For broader historical research or long-term planning exceeding this, we recommend dividing your calculation into smaller segments. This ensures optimal performance while maintaining complete accuracy for each segment.

How do I calculate workdays only?

Simply enable the “Count business days” option in advanced mode. This automatically excludes weekends (Saturday-Sunday). Combine it with holiday exclusion for precise working day counts. The system displays separate totals for business days, weekends, and holidays for complete transparency.

Can I save my calculations?

While the current version doesn’t save data permanently, you can bookmark specific calculations. Holiday lists remain during your session but reset on page refresh. We’re developing account-based features to save preferences and frequent calculations in future updates. Currently, we recommend noting important results manually.