Date Calx

TypeScript, JavaScript, Next.js, React, SEO, Technical SEO, Calendar Calculations, Date Algorithms, API Design, Structured Data, Open Source.

Improving date calculation algorithms, holiday engines, timezone handling, Next.js, TypeScript, structured data, and AI-friendly search optimization.

Building DateCalx—a free platform for accurate date, age, business day, countdown, and time calculation tools with country-specific holiday support.

Open-source collaboration, technical discussions, calculator integrations, developer feedback, guest articles, and productivity tool partnerships.