Free Date & Time Calculators
Age, date differences, time zones, and birthday calculation tools. All tools are free, accurate, and require no account.
Age Calculator
Calculate exact age in years, months, and days from any birthdate.
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Date & Time Tools
12 calculatorsDays Between Dates
Calculate the exact number of days between any two dates with hours, minutes, and a visual chart.
Age Calculator
Calculate exact age in years, months, and days from any birthdate.
Date Calculator
Add or subtract days from a date and find the difference between dates.
Date to Date Calculator
Calculate the exact number of days, weeks, months, and years between two dates.
Time Calculator
Add, subtract, and convert hours, minutes, and seconds.
Time Duration Calculator
Calculate the duration between a start time and end time.
Birthday Calculator
Find out your exact age, days until your next birthday, zodiac sign, and fun birthday facts.
Time Zone Converter
Convert times between any world time zones and view a live world clock for 8 major cities.
Moon Phase Compatibility Calculator
Discover your cosmic connection by comparing moon phases between two dates.
Day Counter
Count the number of days from or until a specific date.
Day of the Week Calculator
Find out what day of the week any date falls on — past, present, or future.
Hours Calculator
Add and subtract hours and minutes for time tracking and scheduling.
Explore Other Categories
We cover all major calculator categories for your everyday needs.
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Mortgage Calculator
Calculate your monthly mortgage payment, total interest, and amortization schedule.
Amortization Calculator
See your full loan amortization schedule with principal and interest breakdown by month.
Loan Calculator
Estimate monthly payments and total cost for any personal or auto loan.
Car Payment Calculator
Calculate your monthly car payment and total loan cost based on price, rate, and term.