Duration Calculator

  • Walking Time to Distance Calculator
    Convert "X minutes on foot" from Japanese property listings into walking distance in meters and km, using the standard 80 m/min advertising rate.
  • Date Plus Weeks Calculator
    Add or subtract weeks to any date and get the resulting calendar date and day of week. Handles leap years; optional Japanese-era year input.
  • Travel Time Between Two Cities Calculator (with Time Zones)
    Calculate the true elapsed travel time between two cities in different time zones. Enter local departure and arrival times plus each city's UTC offset (DST aware).
  • Elapsed Days and Time Between Two Date-Times
    Calculate the elapsed days and time between two date-times (end minus start). Get weeks, days, hours, minutes, seconds, and an H:M:S breakdown instantly.
  • Date-Time Plus Elapsed Time Calculator
    Add or subtract days, hours, minutes and seconds from a start date-time. Get the resulting Gregorian date, time and day of the week instantly.
  • Ideal Egg Boiling Calculator
    Find the perfect egg boiling time for soft, medium, or hard eggs. Adjusts for egg size and altitude so your boiled eggs come out just right.
  • Turkey Thawing Calculator
    Calculate how long to thaw a turkey by weight using the refrigerator or cold water method. Plan Thanksgiving safely with estimated thaw times.
  • Medicine 3 Times a Day Calculator
    Calculate when to take medicine 3 times a day. Enter your waking hours and dose count to get evenly spaced dose times and the hours between each dose.
  • Sobriety Calculator
    Count your days sober from your start date and see weeks, years, and the money you've saved by quitting. Free, instant sobriety tracker.
  • Deadline Calculator
    Calculate a project deadline by adding a number of days to a start date. Choose calendar days or skip weekends, and see how many days remain until the due date.
  • Time Unit Conversion Calculator
    Convert any time value across 16 units at once: Planck time, atomic units, nanoseconds, seconds, minutes, hours, days, weeks, months and years.
  • Elapsed Time Between Two Times Calculator
    Calculate the elapsed time between a start time and an end time. Get the duration as H:MM:SS and totaled in hours, minutes, and seconds, with overnight rollover.
  • Days Old Calculator
    Find out exactly how many days old you are. Enter your birth date and an end date to get total days, weeks, and hours between two dates.
  • Time Unit to Days + H:M:S Calculator
    Convert hours, minutes, or seconds into whole days plus a remaining hours:minutes:seconds breakdown. Fast, precise duration normalization tool.
  • HH:MM:SS to Hours, Minutes, Seconds Converter
    Convert a HH:MM:SS duration into total hours, minutes, or seconds. Supports decimals, values over 59, and negative durations. Free online time converter.
  • Date Plus Days Calculator
    Add or subtract days from a date to find the resulting date and weekday. Supports negative days, count-first-day option, and an optional Japanese era year input.
  • Days Between Two Dates Calculator
    Find the days, weeks, months and years between two dates. Supports Western (CE) years and Japanese calendar eras (Meiji to Reiwa). Free date difference tool.
  • Steak Cook Time Calculator
    Estimate how long to cook a steak per side based on its thickness and your desired doneness, from rare to well done. Get per-side and total grill times.
  • Ham Cooking Time Calculator
    Calculate how long to cook a ham by weight. Enter pounds and minutes per pound (e.g. 18 min/lb at 325°F for fully cooked bone-in) for total oven time.
  • Turkey Cooking Time Calculator
    Calculate how long to roast your turkey at 325°F based on weight. Get cooking time in hours and minutes for stuffed or unstuffed birds.
  • Turkey Defrost Time Calculator
    Calculate how long to thaw a turkey by weight. Get safe refrigerator and cold-water defrost times instantly, based on USDA thawing guidelines.
  • Days Off Calculator
    Calculate your days off in any period by subtracting working days and holidays taken from the total days. Quick, free, and easy to use.
  • Add Time Calculator
    Add hours, minutes and seconds to a start time. Get the resulting 24-hour clock time with automatic day-overflow handling. Free and instant.
  • Binge Watching Calculator
    Find out how many days it takes to binge-watch a TV series. Enter episodes, runtime, and your daily viewing hours to get total watch time instantly.

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