Date And Time Calculators
Calculate ages, date differences, business days, birthdays, work hours, school dates, zodiac signs, and personal milestones.
Date & TimeAge CalculatorCalculate exact calendar age, completed years, total days, birthdays, and age milestones with an explicit leap-day convention.Date & TimeAge Difference CalculatorCompare two birth dates with an exact calendar gap, total days and weeks, current ages on one shared date, birth order, and next-birthday timing.Date & TimeDate CalculatorAdd or subtract one calendar unit or a combined years-months-weeks-days interval with clear month-end rules, stage-by-stage arithmetic, and detailed calendar context.Date & TimeDays Between Dates CalculatorMeasure the exact civil-calendar interval between two dates, compare elapsed and inclusive counts, and inspect weekdays, weekends, milestones, and calendar context.Date & TimeNext Birthday CalculatorCount calendar days to the next birthday and review the date, weekday, age turning, exact current age, half-birthday, and upcoming birthday timeline.Date & TimeSchool Age CalculatorCheck a child's exact age against a school or program's entered minimum-age and cutoff-date rule.Date & TimeLife Stats CalculatorCalculate calendar days lived, exact age, 24-hour equivalents, birthdays, day milestones, and transparent sleep, heartbeat, and breathing scenarios.Date & TimeZodiac Sign CalculatorLook up a conventional Western tropical sun sign, date range, boundary distance, element, modality, polarity, rulers, and related signs from a birth date.Date & TimeBusiness Days CalculatorCount working days between two dates with configurable endpoints, workweeks, exact closure dates, period totals, and surrounding business dates.Date & TimeWork Hours CalculatorBuild a repeated-shift estimate or seven-day timesheet with unpaid breaks, overnight shifts, overtime assumptions, and gross pay projections.Date & TimeHours CalculatorCalculate one clock interval with an explicit day boundary, break deduction, repeated totals, decimal hours, minutes, seconds, and an auditable duration ledger.