Date Calculator

The date calculator automatically accounts for leap years when performing calculations. Leap years occur every 4 years (except century years unless divisible by 400), and the calculator adjusts for February 29th accordingly.

Business days are weekdays (Monday through Friday) excluding weekends. Our business day calculator counts only these days and can optionally exclude weekends. Note that it doesn't account for holidays, which may vary by country or organization.

Yes! You can combine years, months, weeks, and days in a single calculation. For example, you can add 1 year, 3 months, 2 weeks, and 5 days to a date all at once.

The date difference calculation is precise and accounts for varying month lengths, leap years, and exact calendar dates. Results show years, months, days, and total days for comprehensive information.

When subtracting time that would result in a date before the start date, the calculator will show a date in the past. This can be useful for historical calculations or determining earlier dates.

Absolutely! The date calculator is perfect for project planning. Use it to calculate project deadlines, milestones, business day durations, and delivery dates. The business days calculator is especially useful for work-related planning.

Yes, the calculator can handle a wide range of dates from far in the past to far in the future. However, very distant dates may have limitations based on browser capabilities and calendar system accuracy.

Use the Date Difference calculator with your birth date as the "From Date" and today's date (or any specific date) as the "To Date". This will show your exact age in years, months, and days.

The business days calculator excludes weekends but not specific holidays, as these vary by country and organization. For holiday-specific calculations, you would need to manually account for those days.

The calculator uses your local time zone as set on your device. Date calculations are performed at the beginning of each day (midnight), so time zone differences typically don't affect date-only calculations.