Even where the time for performance is determined by the instrument, the obligor shall be in default only when the holder has presented the instrument and demanded performance after the time for performance has commenced.
Civil Act — Article 517 (Presentation of instrument and performance delay)
민법 제517조
For AI agents and developers — get this article as JSON, with the English and current Korean effective dates and an outdated-translation flag, from the korea-law API or as an MCP tool: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