Free Time & Date Tools
Convert time zones, calculate date differences, add business days, and plan schedules across regions.
Time Calculator
Add or subtract hours, minutes, and seconds.
Open toolBusiness Days Calculator
Count working days between dates and add business days.
Open toolDate Add/Subtract Calculator
Add or subtract days, weeks, months, or years from a date.
Open toolWeek Number Calculator
Find the ISO week number and date range for any date.
Open toolTime Duration Calculator
Calculate the exact duration between two clock times.
Open toolOvertime Calculator
Calculate regular pay, overtime pay, and total earnings.
Open toolWork Hours Calculator
Calculate total working hours from start, end, and break times.
Open toolTime Card Calculator
Build a weekly time card and calculate hours per day.
Open toolDate Format Converter
Convert dates between ISO, US, European, and custom formats.
Open toolCalendar Generator
Generate and print clean monthly or yearly calendars.
Open toolTime Zone Converter
Plan meetings across the world by converting a time from one time zone to another.
Open toolDays Between Dates
Count the days, weeks, months, and working days between any two dates.
Open toolAge Calculator
Find your exact age in years, months, and days—plus your next birthday countdown.
Open toolUnix Timestamp Converter
Convert between Unix timestamps and human-readable dates, with live clock support.
Open toolPomodoro Timer
Stay focused with a 25-minute work timer and short breaks.
Open toolMeeting Time Zone Planner
Compare multiple cities and find overlapping business hours for meetings.
Open toolOnline Alarm Clock & Stopwatch
Set a browser alarm or run a precise stopwatch with lap times.
Open toolCustom Countdown Timer
Create a shareable full-screen countdown for birthdays, launches, and events.
Open toolAge Difference Calculator
Compare two birth dates and see the exact difference in years, months, days, and hours.
Open tool