Ultra-fast date-time library

Zero dependencies. 2× faster than Day.js. TypeScript-first. Immutable API with comprehensive i18n support.

import { fdu } from "@pyyupsk/fdu";

const date = fdu("loading...");

date.format("dddd [at] HH:mm");

// → "loading..."

import { fdu } from "@pyyupsk/fdu";const date = fdu("loading...");date.format("dddd [at] HH:mm");// → "loading..."

2×

Fast Performance

2× faster than Day.js with optimized native Date algorithms.

Zero Dependencies

Pure TypeScript with no external runtime dependencies.

20+

Locales Built-in

Multiple locales included with comprehensive i18n support.

94%+

Test Coverage

Rigorously tested with comprehensive unit & integration coverage.

Ready to get started?

Install @pyyupsk/fdu in your project and start building with modern date utilities.