기간 계산기

Calculate duration between times, add/subtract duration, convert time units, and find elapsed time with step-by-step solutions.

Your Input

형식: HH:MM 또는 HH:MM:SS(예: 09:00 또는 09:00:00)

다음 날이 될 수 있습니다(예: 23:00~02:00).

Select a calculation type, enter your times or duration, then click Calculate to see results with step-by-step solution and visualization.

전체 사용자 가이드

기간이란 무엇입니까?

Time duration is the amount of time that passes between two points in time, or the length of time something takes. This calculator finds duration between two clock times, adds or subtracts duration from a time, converts between time units, and computes end time from a start time and elapsed duration.

Time format: HH:MM or HH:MM:SS (24-hour)

시간 형식

HH:MM: 시간:분(예: 14:30)

HH:MM:SS: 시:분:초(예: 14:30:45)

Use 24-hour format (0-23 hours).

계산 유형

시간 사이의 기간

Enter start and end time; duration can cross midnight.

기간 더하기/빼기

Add or subtract hours, minutes, seconds, or days from a given time.

기간 단위 변환

Convert between seconds, minutes, hours, days, weeks, months, and years.

경과 시간 계산

From a start time and elapsed duration, get the end time.

이 계산기를 사용하는 방법

  1. Select calculation type from the dropdown.
  2. Enter time values (HH:MM or HH:MM:SS) or duration and units in the form.
  3. Click Calculate to see the result, detail cards, visualization (when available), and step-by-step solution.
  4. Click Reset to clear inputs and results.

중요 사항

  • Use 24-hour format (0-23 hours). Duration can cross midnight.
  • Subtracting duration may wrap to the previous day. All calculations use seconds internally.
  • Months and years are approximate (30 and 365 days).

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