🕐 Date & Time Calculators
Ages, dates, durations, business days, shifts and time-zone planning.
Age CalculatorCalculate exact age in years, months and days.Date CalculatorFind days between dates or add and subtract days.Time CalculatorAdd or subtract hours and minutes.Time Duration CalculatorCalculate the exact duration between two clock times, including overnight periods.Minutes to Hours CalculatorConvert any number of minutes into decimal hours and hours plus minutes.Hours to Minutes CalculatorConvert decimal hours into minutes instantly for work, study, travel or planning.Decimal Hours CalculatorConvert decimal hours to hours and minutes, or use it for payroll and timesheets.Hours From Now CalculatorFind the exact date and time a chosen number of hours from now.Day CounterCount calendar days between two dates, with optional inclusive counting.Day of the Week CalculatorFind which weekday a calendar date falls on.Work Hours CalculatorCalculate paid work duration from start, end and unpaid break.Weeks Between Dates CalculatorCalculate complete weeks and remaining days between two dates.Business Days CalculatorCount weekdays between two dates, excluding Saturday and Sunday.Time Zone ConverterConvert a time between two manually selected UTC offsets.Date Addition CalculatorAdd a number of days, weeks, months, or years to a calendar date.Date Subtraction CalculatorSubtract a number of days, weeks, months, or years from a calendar date.Birthday Countdown CalculatorCount calendar days until the next birthday from a birth date.Leap Year CalculatorCheck whether a Gregorian calendar year is a leap year.Time Addition CalculatorAdd hours and minutes to a starting clock time.Shift Hours CalculatorCalculate paid shift hours from clock-in, clock-out and unpaid break.
Free date & time calculators
Choose a calculator above, enter your values and receive an instant result. Each tool works on mobile, tablet and desktop without registration.