Check the exact interval in years, months, days, and counted days under Korean Civil Act rules.
Use this when you already know both dates and want to see the Korean-law interval between them.
Enter the dates and period
to see the result
All results are reference information based on general principles of the Korean Civil Act. Actual legal effect and deadline outcomes can vary depending on the facts, special agreements, and other applicable statutes. Consult a qualified professional before relying on the result for an important legal action.
The calculator follows the calendar-based approach commonly associated with Article 160 of the Korean Civil Act. It shows both the counted days and the interval broken down into years, months, and days.
This setting decides whether the first day is counted as part of the period. Under the Korean Civil Act, excluding the first day is the default baseline, but inclusion can still matter where the period starts at midnight or the parties agreed otherwise.
If the target month has no matching calendar day, the calculator follows the Korean Civil Act approach of using the last day of that month.
Enter the start and end dates of a lease, employment, or insurance contract to see exactly how many years and months the contract covers. If you need the final expiry date after a certain date, use the expiry date calculator.
You can use it to review periods set by law, such as limitation periods, objection deadlines, or appeal windows. If you need to work backward from the deadline to the starting date, use the backdate calculator.
You can check the span from a project start date to its deadline, or break down the remaining time until an event into years, months, and days.
This page is reviewed against the official sources below. Special statutes, case-specific agreements, or procedural rules can still change the final legal outcome.
Official statutory source used to review the general baseline for day-one counting, period expiry, calendar-based month and year counting, and holiday extension.
Official public-holiday data source referenced when the calculator checks Korean public holidays and substitute holidays.