All Tools
16 free date and time tools — no account required.
Age Calculator
Calculate your exact age in years, months, days, hours and minutes.
Date Difference
Find the exact number of days, weeks, or months between two dates.
Countdown Timer
Count down to any future event — New Year, birthday, deadline.
Time Zone Converter
Convert time across world time zones instantly.
Working Days Calculator
Calculate business days between dates, excluding weekends and holidays.
Add / Subtract Days
Add or subtract any number of days, weeks, or months from a date.
Hours From Now Calculator
Find the exact local date and time any number of hours, minutes, or days from now or ago.
Time Calculator
Add or subtract days, hours, minutes, and seconds from any clock time.
Time Duration Calculator
Calculate the hours and minutes between two times, including overnight periods.
Time Card Calculator
Total weekly work hours, unpaid breaks, overtime, and estimated gross pay.
Unix Timestamp
Convert Unix timestamps to human-readable dates and vice versa.
Week Number
Find the ISO week number for any date of the year.
Leap Year Checker
Check if any year is a leap year and when the next one is.
World Clock
See the current time in major cities around the world.
Zodiac & Chinese Sign
Find your Western zodiac sign and Chinese zodiac animal by birthday.
Day of Year
Find what day number of the year any date falls on.