All date tools (19)
Each tool runs locally - nothing is uploaded.
Age CalculatorThis Age Calculator converts a date of birth into a precise age down to the day. Instead of only tel…Date CalculatorThe Date Calculator answers questions such as "what date is 90 days from now?" or "what was the date…Days Between Dates CalculatorThe Days Between Dates Calculator measures the gap between two calendar dates. Enter a start and an …Business Days CalculatorThe Business Days Calculator counts only Monday-to-Friday days between two dates, and lets you subtr…Weekday FinderThe Weekday Finder tells you instantly which day of the week any date falls on - whether it is a bir…Countdown Date CalculatorThe Countdown Date Calculator turns any future date into a live, second-by-second countdown. Enter t…Time Duration CalculatorThe Time Duration Calculator measures how much time passes between two timestamps. Enter a start and…Age In Months CalculatorThe Age In Months Calculator expresses an age purely in months rather than years, which is exactly w…Working Days CalculatorThe Working Days Calculator is the flexible version of a business-days counter. Instead of assuming …Leap Year CheckerThe Leap Year Checker tells you whether a given year has 366 days, and explains why. A year is a lea…Sleep Cycle CalculatorSleep runs in roughly 90-minute cycles, alternating between light sleep, deep sleep and REM. Waking …Shift Work Hours CalculatorShift work rarely fits the tidy 9-5 / 40-hour model: nurses work three 12-hour shifts and a 4, secur…Overtime Pay CalculatorOvertime pay is straightforward in principle: any hour above 40 in a week is paid at 1.5x (or 2x pas…Time Zone Meeting PlannerThe Time Zone Meeting Planner answers the only question that matters when scheduling across time zon…Work Week CalculatorA project that ends in three weeks is six, eight or fifteen workdays depending on which days are wee…Vacation Day CalculatorVacation day policies are not all the same: some give 20 days a year on day one, others accrue 1.67 …Hours Between Two Times CalculatorThe Hours Between Two Times Calculator is the everyday cousin of the duration calculator: type a sta…Week Number FinderThe Week Number Finder answers three questions: which week of the year is this, which day of the yea…Time Card CalculatorA time card is a list of clock-in and clock-out pairs. The Time Card Calculator accepts a line per d…
About the date & time category
Our date & time section covers the most common needs: age calculator, date calculator, days between dates calculator, business days calculator, weekday finder and more. Every calculator uses the same standards as the spreadsheets and formulas used in real work, with the maths explained in plain English so you can verify the output.
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