Calculate the exact difference between two dates and times. Perfect for project planning, age calculations, and time management.
Calculate differences in days, weeks, months, and years with precision
Include hours, minutes, and seconds for exact time calculations
Instant calculations with live updates as you change dates
Date difference calculations help you understand the time span between two dates. Whether you're planning projects, calculating ages, or managing schedules, our calculator provides accurate results in multiple units.
When time precision matters, our calculator can include hours, minutes, and seconds in the calculation. This is perfect for tracking exact durations or scheduling precise events.
Calculate project timelines, milestones, and deadlines with precision
Find exact age in years, months, days, and more
Plan events, anniversaries, and important dates
Months are calculated using an average of 30.44 days per month to account for different month lengths.
Years are calculated using 365.25 days on average to account for leap years every 4 years.
Yes! The calculator works for both past and future dates, automatically detecting the direction.
The calculator works with any valid dates within JavaScript's date range (approximately 1970-2038).