Service end date planner
Estimate an end date with a custom duration
How it works
Plan a service or project end date using a custom number of months and adjustment days. The start counts as day 1. This international tool applies your duration and does not apply Korean military rules.
Example
An 18-month period starting January 1, 2026 ends June 30, 2027 when the start counts as day 1.
How to use
- Enter your values or choose a local file.
- Choose settings and run the tool.
- Review the result, then copy it or download the file.
Common questions
What rules does this tool use?
Plan a service or project end date using a custom number of months and adjustment days. The start counts as day 1. This international tool applies your duration and does not apply Korean military rules.
Are my inputs uploaded?
Calculations, texts and files are processed in this browser. The currency tool requests only currency codes from our server.
Reference sources
Free tool · Inputs processed locally · Updated October 5, 2026