Date & Time
Work with dates and times: age, date differences, business days, durations, time zones and countdowns.
Age Calculator
Calculate your exact age in years, months and days from your date of birth. See your age in total days, weeks and months too. Free and private.
Business Days Calculator
Count working days between two dates or add business days to a date. Skips weekends and any holidays you list. Inclusive counting, instant results.
Countdown Timer
Free live countdown timer to any date and time. Set a target and watch the days, hours, minutes and seconds tick down in real time.
Date Add/Subtract Calculator
Add or subtract years, months, weeks and days from any date. Get the exact result date and weekday, with smart end-of-month clamping.
Date Difference Calculator
Find the number of days, weeks, business days and years, months and days between two dates. Enter a start and end date to see the full breakdown.
Days Until Date Calculator
Count the days until any date. Enter a target date to see how many days, weeks, months and business days are left, with a from date that defaults to today.
Epoch Batch Converter
Convert many Unix epoch timestamps to UTC dates, or dates to epochs, in one paste. Handles seconds and milliseconds, flags bad lines, exports CSV.
Meeting Planner Across Time Zones
Find a meeting time that works for everyone. Add each person's UTC offset and working hours to see the overlapping window in their local time and in UTC.
Recurring Date Generator
Generate a list of recurring dates from a start date. Pick daily, weekly, monthly or yearly, set the interval and count, then copy or download.
Sprint Date Calculator
Generate a full agile sprint schedule from a start date. Set sprint length, count and gaps to get start, end and working days for every sprint.
Time Duration Calculator
Find the duration between two times of day. Enter a start and end time to get hours and minutes, total minutes and decimal hours, including overnight shifts.
Time Zone Converter
Convert a date and time from one time zone to another. Pick any two IANA zones and see the converted time with UTC offsets. Handles DST automatically.
Week Number Calculator
Find the ISO 8601 week number for any date, plus the day of the year, weekday, calendar quarter and how many days are left in the year.
Working Days With Holidays
Count working days between two dates while excluding your own holidays. Set custom weekend days and see a full breakdown of weekends and holidays.