If a period has been fixed by the day, week, month or year, the first day of such period shall not be included in the computation; provided, this shall not apply if the period begins at midnight.
Civil Act — Article 157 (Starting point of computing period)
민법 제157조
For AI agents and developers — get this article as JSON, with the English and current Korean effective dates and an outdated-translation flag, from the korea-law API or as an MCP tool:
https://mcp.apify.com?tools=kr-data/korea-law