11 tools · 3 groups
Date & Time Tools
Convert timestamps, compare time zones, calculate age, and measure durations. Built for quick scheduling and developer jobs.
Clock
- Unix Timestamp ConverterConvert epoch seconds or milliseconds to readable dates — and the other way around.
- Time Zone ConverterPick a date and time in one zone and see the same moment across other cities.
- Time Difference CalculatorSee how many hours and minutes separate two time zones on a given date.
Calendar
- Age CalculatorFind exact age in years, months, and days — plus days until the next birthday.
- Date CalculatorAdd or subtract time from a date, or count calendar and business days between two dates.
- Week Number CalculatorGet the ISO week number and weekday for any calendar date.
- Countdown / Days UntilSee how many days remain until an event — or how long since it passed.
Hours
- Hours CalculatorFind elapsed hours between a start and end clock time — overnight shifts included.
- Time CalculatorAdd or subtract hours, minutes, and seconds from any clock time.
- Time Duration CalculatorMeasure elapsed time between two date-times down to the second.
- Work Hours CalculatorGet net shift hours after unpaid breaks — in hh:mm and decimal hours.
How these tools work
Date math runs in your browser using JavaScript Date APIs. Time zone results follow your browser’s zone data; DST edge cases can vary. Read our Privacy Policy.
Who these tools are for
Developers debugging epochs, remote teams comparing zones, and anyone counting days until an event.
FAQ
Are time zone results always exact?expand_more
They depend on browser time zone data. Double-check critical meetings around DST changes.
Is the work hours tool payroll software?expand_more
No. It helps estimate hours between clock-in and clock-out. Confirm with your employer’s rules.
Do I need an account?expand_more
No.
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