# Lightweight JavaScript Date Libraries

> Search results for `lightweight JavaScript library for parsing and formatting dates` on awesome-repositories.com. 116 total matches; showing the first 50.

Explore on the web: https://awesome-repositories.com/q/lightweight-javascript-library-for-parsing-and-formatting-dates

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## Results

- [date-fns/date-fns](https://awesome-repositories.com/repository/date-fns-date-fns.md) (36,579 ⭐) — date-fns is a JavaScript date utility library providing a collection of pure functions for manipulating, formatting, and calculating dates and times. It serves as an immutable date manipulation library and a tool for time zone management, ensuring that date transformations are performed without modifying the original date objects.

The library functions as a date formatting tool that converts date objects into human-readable strings using custom patterns and international locales. It includes a specific toolset for adjusting and calculating date representations across different geographical re
- [fincept-corporation/finceptterminal](https://awesome-repositories.com/repository/fincept-corporation-finceptterminal.md) (26,900 ⭐) — FinceptTerminal is a quantitative finance platform and financial engineering library designed for asset valuation, risk management, and fixed-income analytics. It provides a comprehensive suite for algorithmic trading and investment strategy automation, integrating specialized language model agents and node-based workflows to automate market research and alpha generation.

The project distinguishes itself with a dedicated game theory analysis engine for calculating Nash equilibria and simulating strategic interactions in competitive markets. It also features a specialized credit risk modeling
- [hosseinmoein/dataframe](https://awesome-repositories.com/repository/hosseinmoein-dataframe.md) (2,917 ⭐) — DataFrame is a C++ tabular data library and manipulation engine designed for managing heterogeneous data in contiguous memory. It functions as a statistical analysis framework and time series analysis toolkit, providing the means to store, index, and transform multidimensional datasets.

The project distinguishes itself through a high-performance execution model that utilizes column-major storage, SIMD-aligned memory allocation, and a thread-pool for parallel computations. It employs a visitor-based algorithm dispatch system and policy-driven transformations to decouple data processing logic f
- [javascript-tutorial/en.javascript.info](https://awesome-repositories.com/repository/javascript-tutorial-en-javascript-info.md) (25,344 ⭐) — This project is a comprehensive JavaScript programming tutorial and language reference. It serves as a web development education resource providing instruction on modern language fundamentals, object-oriented design, and advanced asynchronous programming patterns.

The resource functions as both a frontend development guide and a technical reference. It covers core language features such as closures, prototypes, promises, and typed arrays, while providing practical lessons on managing browser data and handling network requests.

The content spans several key capability areas, including browser
- [flatpickr/flatpickr](https://awesome-repositories.com/repository/flatpickr-flatpickr.md) (16,469 ⭐) — Flatpickr is a lightweight, dependency-free JavaScript library designed to provide a modular date and time selection interface for web applications. It functions as a versatile web component that integrates into existing forms, offering a consistent user experience for picking single dates, ranges, or multiple values while maintaining a clear separation between human-readable display strings and machine-readable data.

The library distinguishes itself through a robust configuration-driven architecture that allows for dynamic runtime updates and extensive customization of date formatting via a
- [fastapi/typer](https://awesome-repositories.com/repository/fastapi-typer.md) (19,632 ⭐) — This project is a Python framework for building command-line interfaces by converting standard functions into executable programs. It uses type hints to automatically infer and generate argument parsers, validation logic, and help documentation, allowing developers to define complex terminal applications through simple function signatures.

The framework distinguishes itself through a decorator-driven registration system that enables the construction of hierarchical command trees. It supports dependency injection to manage shared state and runtime configuration across subcommands, and it utili
- [clipperz/javascript-crypto-library](https://awesome-repositories.com/repository/clipperz-javascript-crypto-library.md) (284 ⭐) — The JavaScript Crypto Library provides web developers with an extensive and efficient set of cryptographic functions. The library aims to obtain maximum execution speed while preserving modularity and reusability. The library is released as open source under a BDS license.
- [firefly-iii/firefly-iii](https://awesome-repositories.com/repository/firefly-iii-firefly-iii.md) (22,431 ⭐) — Firefly III is a self-hosted personal finance management system built on a double-entry bookkeeping engine. It provides a comprehensive platform for tracking income, expenses, and account balances while maintaining financial integrity through structured accounting principles. Designed for private use, the system supports multi-user access, allowing independent financial administrations to coexist within a single installation.

The platform distinguishes itself through extensive automation and integration capabilities. It features a robust REST JSON API and webhook system that enables programma
- [howardhinnant/date](https://awesome-repositories.com/repository/howardhinnant-date.md) (3,379 ⭐) — This project is a comprehensive date and time library designed for parsing, formatting, and calculating dates and times with high precision. It provides a multi-calendar system implementation that supports conversions between proleptic Gregorian, Julian, ISO week, and Tabular Islamic calendars.

The library is distinguished by its high-precision time clocks and its implementation of the IANA time zone database. It tracks physical time using UTC, TAI, and GPS clocks to account for leap seconds and provides a system for managing geographic time zones and offsets based on IANA data.

The capabili
- [ant-design/ant-design](https://awesome-repositories.com/repository/ant-design-ant-design.md) (98,362 ⭐) — Ant Design is an enterprise-grade component library and design system framework built for developing complex, data-heavy web applications. It provides a comprehensive collection of pre-built, state-driven interface elements that map data properties to rendered components, ensuring consistent interaction patterns and visual language across large-scale projects.

The library distinguishes itself through a robust styling architecture that utilizes design tokens and hierarchical configuration providers to propagate global settings like themes, locale, and layout direction. By employing component-l
- [johnpolacek/date-range-picker-for-shadcn](https://awesome-repositories.com/repository/johnpolacek-date-range-picker-for-shadcn.md) (1,014 ⭐) — DateRangePicker is a reusable component for shadcn using Radix UI and Tailwind CSS. Includes preset date ranges, text entry, calendar selection and date comparison
- [iamkun/dayjs](https://awesome-repositories.com/repository/iamkun-dayjs.md) (48,662 ⭐) — Day.js is a lightweight utility for parsing, validating, and manipulating date objects. It provides a fluent, chainable interface that allows for complex time calculations and transformations to be performed through a sequence of readable method calls. By utilizing an immutable wrapper pattern, the library ensures data integrity by creating new instances for every operation rather than modifying existing objects.

The project is distinguished by a minimalist core abstraction that maintains a small footprint by offloading non-essential features to an optional, modular plugin system. This archit
- [haxefoundation/format](https://awesome-repositories.com/repository/haxefoundation-format.md) (139 ⭐) — The format library contains support for different file-formats for the Haxe programming language.
- [yangzongzhuan/ruoyi-vue3](https://awesome-repositories.com/repository/yangzongzhuan-ruoyi-vue3.md) (6,631 ⭐) — RuoYi-Vue3 is a full-stack administrative dashboard and permission management framework built with SpringBoot and Vue 3. It serves as an enterprise management backend providing a decoupled architecture that separates the API from the user interface.

The project features a low-code CRUD generator that automatically produces frontend and backend boilerplate code and API documentation from database tables. It implements a comprehensive role-based access control system for managing users, departments, and granular permissions at the menu and button levels, secured by stateless JSON Web Token auth
- [angular-ui/bootstrap](https://awesome-repositories.com/repository/angular-ui-bootstrap.md) (14,206 ⭐) — This project is a collection of native directives designed to implement the Bootstrap component framework within Angular applications. It provides a suite of modular interface elements that allow developers to build interactive web components without requiring external JavaScript dependencies.

The library distinguishes itself by using a dependency-free logic layer that relies entirely on native framework primitives. It features a specialized service-based positioning engine to manage the placement of floating overlays and an event-driven system to coordinate the lifecycle of complex UI elemen
- [matthewmueller/date](https://awesome-repositories.com/repository/matthewmueller-date.md) (1,479 ⭐) — Date() for humans
- [avelino/awesome-go](https://awesome-repositories.com/repository/avelino-awesome-go.md) (175,576 ⭐) — This project serves as a comprehensive language ecosystem index, functioning as a centralized, community-curated directory for the Go programming language. It organizes a vast landscape of software components, libraries, and development tools into a structured, navigable hierarchy, enabling developers to efficiently discover resources tailored to specific functional domains.

The repository distinguishes itself through a decentralized contribution model, where community-driven updates ensure the index remains current with the rapidly evolving software landscape. Beyond simple resource listing,
- [denoland/deno](https://awesome-repositories.com/repository/denoland-deno.md) (107,110 ⭐) — Deno is a high-performance runtime for JavaScript and TypeScript that prioritizes security and developer productivity. Built on the V8 engine, it provides a secure execution environment that enforces a default-deny security model, requiring explicit user authorization for access to system resources like the file system, network, and environment variables. The runtime natively supports modern web-standard APIs, ensuring consistent behavior and portability across different environments.

What distinguishes Deno is its integrated approach to the software development lifecycle. It bundles essentia
- [vuetifyjs/vuetify](https://awesome-repositories.com/repository/vuetifyjs-vuetify.md) (41,003 ⭐) — This project is a comprehensive UI toolkit that provides a declarative, reactive framework for building modular web interfaces. It centers on a component-based architecture that maps application state to rendered elements, utilizing a twelve-point flexbox grid system and nested containers to manage complex layouts. The library ensures consistent behavior across large-scale applications by providing centralized configuration for component defaults, themes, and global design tokens.

What distinguishes this framework is its deep integration of Material Design principles alongside a highly flexib
- [samverschueren/tz-format](https://awesome-repositories.com/repository/samverschueren-tz-format.md) (12 ⭐) — Format a date with timezone
- [parse-community/parse-sdk-flutter](https://awesome-repositories.com/repository/parse-community-parse-sdk-flutter.md) (587 ⭐) — The Dart/Flutter SDK for Parse Platform
- [apache/jmeter](https://awesome-repositories.com/repository/apache-jmeter.md) (9,233 ⭐) — Apache JMeter is a Java-based performance testing tool and multi-protocol traffic simulator used to analyze the stability and scalability of servers and networks. It functions as a distributed load testing framework that coordinates remote worker nodes from a single controller to generate high volumes of concurrent traffic.

The project is distinguished by its ability to simulate traffic across diverse backend systems, including HTTP, JDBC, LDAP, JMS, FTP, and TCP. It provides a headless command-line interface for automated execution and a reporting system that transforms raw sample logs into
- [11ty/eleventy](https://awesome-repositories.com/repository/11ty-eleventy.md) (19,670 ⭐) — Eleventy is a JavaScript-based static site generator designed to transform templates, data files, and markdown into optimized HTML. It functions as a versatile template rendering engine and content management framework, allowing developers to aggregate data from diverse sources—including local files, databases, and external APIs—to populate structured web content.

The project is distinguished by its template-engine-agnostic pipeline, which decouples the build process from specific rendering languages. This allows users to integrate multiple template formats, such as Liquid, Nunjucks, Handleba
- [jenssegers/date](https://awesome-repositories.com/repository/jenssegers-date.md) (1,806 ⭐) — 🗓 A library to help you work with dates in multiple languages, based on Carbon.
- [taiga-family/taiga-ui](https://awesome-repositories.com/repository/taiga-family-taiga-ui.md) (4,002 ⭐) — Taiga UI is an Angular UI component library and accessible design system used for building enterprise web interfaces. It provides a comprehensive collection of reusable interface elements and layout tools, functioning as a mobile-first UI kit with responsive components that adapt to different device capabilities.

The library distinguishes itself through an integrated data visualization library featuring various chart types and a dedicated form management framework with built-in validation and formatting for specialized data. It also features AI-driven development workflows by integrating comp
- [boostorg/boost](https://awesome-repositories.com/repository/boostorg-boost.md) (8,493 ⭐) — Boost is a collection of portable, high-performance source libraries that extend the C++ standard library. It provides a wide range of reusable components, data structures, and algorithms designed to add capabilities to the base language across different platforms.

The project is distinguished by its extensive focus on compile-time template metaprogramming and generic programming. It implements advanced architectural patterns such as policy-based design, concept-based type validation, and the use of SFINAE for conditional template resolution to minimize runtime overhead.

The library covers a
- [honojs/hono](https://awesome-repositories.com/repository/honojs-hono.md) (30,994 ⭐) — Hono is a lightweight web framework built on Web Standard APIs that executes across JavaScript runtimes including Cloudflare Workers, Deno, Bun, and Node.js.
- [rickb777/date](https://awesome-repositories.com/repository/rickb777-date.md) (142 ⭐) — A Go package for working with dates
- [sdispater/pendulum](https://awesome-repositories.com/repository/sdispater-pendulum.md) (6,668 ⭐) — Pendulum is a Python date and time library that provides a simplified interface for date arithmetic, ISO parsing, localization, and timezone management. It serves as a replacement for the standard library datetime module, extending existing classes to maintain compatibility while offering a more intuitive management interface.

The library distinguishes itself through a natural language date formatter that translates time differences into localized strings and a dedicated ISO 8601 date parser. It also includes tools for time-dependent logic testing, allowing the system clock to be mocked or fi
- [home-assistant/core](https://awesome-repositories.com/repository/home-assistant-core.md) (87,753 ⭐) — Home Assistant is a centralized home automation platform designed to orchestrate diverse internet-connected devices and services. It functions as a local-first control system that normalizes heterogeneous hardware protocols into a unified set of entities, attributes, and services. The core architecture relies on an event-driven state bus and a modular integration model, allowing the system to manage state changes and communicate across decoupled components through standardized interfaces.

The platform distinguishes itself through a highly flexible, declarative configuration framework that all
- [rstacruz/cheatsheets](https://awesome-repositories.com/repository/rstacruz-cheatsheets.md) (14,429 ⭐) — This project is a comprehensive collection of web development reference guides and technical cheat sheets. It provides a curated set of markdown-based documentation designed to help developers quickly locate syntax patterns and API examples for common web technologies and programming languages.

The repository serves as a specialized reference library covering several distinct technical domains. It includes extensive guides for CSS, focusing on selectors, Flexbox, Grid, and responsive layout properties, as well as a DevOps command reference for Docker, Kubernetes, AWS, Ansible, and general she
- [tieske/date](https://awesome-repositories.com/repository/tieske-date.md) (273 ⭐) — Date & Time module for Lua 5.x
- [python-pendulum/pendulum](https://awesome-repositories.com/repository/python-pendulum-pendulum.md) (6,668 ⭐) — Pendulum is a Python datetime library used for creating, manipulating, and formatting date and time objects with native timezone awareness. It extends the native Python datetime class to maintain compatibility while providing a specialized engine for date arithmetic and timezone management.

The library features a dedicated ISO 8601 and RFC 3339 parser that converts standardized strings into date objects without requiring manual format strings. It also includes a relative time generator for producing natural language descriptions of time differences and a timezone management tool that automati
- [chancejs/chancejs](https://awesome-repositories.com/repository/chancejs-chancejs.md) (6,541 ⭐) — Chance is a JavaScript library for generating random data, designed to produce realistic test data for automated tests and prototypes. It uses a Mersenne Twister pseudo-random number generator that accepts an optional seed value, enabling reproducible sequences of random values across multiple runs.

The library provides a wide range of generators for common data types, including random integers, floats, booleans, characters, strings, and dates, all with configurable ranges and character pools. It can generate realistic geographic data like addresses, as well as financial data such as credit c
- [typelevel/cats-parse](https://awesome-repositories.com/repository/typelevel-cats-parse.md) (244 ⭐) — A parsing library for the cats ecosystem
- [meilisearch/meilisearch](https://awesome-repositories.com/repository/meilisearch-meilisearch.md) (58,118 ⭐) — Meilisearch is a Rust-based search engine providing typo-tolerant full-text and vector-based semantic search with real-time conversational capabilities.
- [alibaba/fastjson](https://awesome-repositories.com/repository/alibaba-fastjson.md) (25,625 ⭐) — Fastjson is a Java data binding framework and serialization library designed to convert objects to JSON strings and parse JSON data into typed objects. It functions as a JSON parser and stream processor capable of transforming JSON strings into data structures.

The project emphasizes high performance JSON processing and memory management, specifically through the use of a pipeline to stream oversized JSON objects and texts to prevent memory exhaustion.

It provides capabilities for JSON data serialization and deserialization workflows, including custom JSON data mapping and the ability to def
- [psecio/parse](https://awesome-repositories.com/repository/psecio-parse.md) (382 ⭐) — Parse: A Static Security Scanner
- [tradingview/lightweight-charts](https://awesome-repositories.com/repository/tradingview-lightweight-charts.md) (13,794 ⭐) — Lightweight Charts is a specialized library for rendering interactive time-series financial data visualizations within web applications. It provides a high-performance, responsive component designed to display historical and live market trends through various graphical formats, including candlesticks, histograms, and line series.

The library distinguishes itself through a canvas-based rendering engine that decouples visual representation from raw data, enabling efficient updates and real-time monitoring of large datasets. It includes built-in support for accessibility, ensuring that interacti
- [home-assistant/home-assistant.io](https://awesome-repositories.com/repository/home-assistant-home-assistant-io.md) (9,466 ⭐) — Home Assistant is a local home automation platform and server that acts as an IoT device orchestrator. It integrates diverse smart home hardware by wrapping third-party APIs into a standardized logic layer and stores all system state and historical statistics on local hardware to eliminate cloud dependencies.

The system functions as a Matter IoT controller and an MQTT home automation bridge, allowing for local interoperability between different manufacturers. It features a state-based entity model and an internal event bus that decouple physical device logic from system automation.

The platf
- [prestodb/presto](https://awesome-repositories.com/repository/prestodb-presto.md) (16,711 ⭐) — Presto is a distributed SQL query engine designed for high-performance analytical processing across heterogeneous data sources. It functions as a data federation platform and massively parallel processing engine, allowing users to execute interactive queries against diverse storage systems without requiring data migration. By mapping remote metadata and structures to a unified relational namespace, it enables seamless cross-platform analysis through a standard SQL interface.

The engine distinguishes itself through a pluggable connector architecture and a shared-nothing distributed processing
- [pikaday/pikaday](https://awesome-repositories.com/repository/pikaday-pikaday.md) (8,092 ⭐) — Pikaday is a lightweight JavaScript datepicker library and client-side date input manager. It provides a standalone calendar interface for selecting dates in web applications as a zero-dependency UI component that operates without external frameworks or libraries.

The tool features a modular CSS architecture that separates structural logic from visual presentation, allowing for flexible customization of the calendar layout. It includes built-in support for calendar localization, enabling the update of month names and weekday labels to match specific languages or regions.

The library manages
- [expo/expo](https://awesome-repositories.com/repository/expo-expo.md) (50,111 ⭐) — Expo is a universal mobile framework designed to build native iOS and Android applications from a single codebase using web-standard technologies. It provides a comprehensive development environment that includes a unified runtime for testing, cloud-based infrastructure for compiling and signing native binaries, and automated tools for managing the entire mobile release lifecycle, including app store submission.

The framework distinguishes itself through a plugin-based native configuration engine that programmatically modifies project files, allowing developers to integrate native modules wit
- [pazams/go-for-javascript-developers](https://awesome-repositories.com/repository/pazams-go-for-javascript-developers.md) (1,238 ⭐) — A comparison between Go and Javascript
- [cullophid/date-fp](https://awesome-repositories.com/repository/cullophid-date-fp.md) (119 ⭐) — Functional programming date manipulation library
- [pallets/click](https://awesome-repositories.com/repository/pallets-click.md) (17,560 ⭐) — Click is a Python framework for building command-line interfaces. It provides a declarative approach to defining command structures, allowing developers to map functions to command-line arguments, options, and nested groups using decorators. The framework handles the complexities of parameter parsing, type validation, and help documentation generation automatically.

The project distinguishes itself through its hierarchical context system, which propagates configuration and state across nested commands, and its environment-aware parameter resolution that prioritizes command-line inputs, enviro
- [imagemagick/imagemagick](https://awesome-repositories.com/repository/imagemagick-imagemagick.md) (15,742 ⭐) — ImageMagick is a comprehensive software suite for the creation, editing, composition, and conversion of digital images. It functions as both a command-line utility for batch processing and automation, and as a programming library that allows developers to integrate advanced image manipulation capabilities into external applications.

The project is distinguished by its modular architecture, which supports hundreds of image formats through a pluggable coder system and external delegate libraries. It is designed for high-performance environments, utilizing memory-mapped pixel caching, stream-ori
- [angular/angular.js](https://awesome-repositories.com/repository/angular-angular-js.md) (58,615 ⭐) — AngularJS is a structural framework for building dynamic web applications by extending standard HTML with custom tags and attributes. It operates as a client-side template engine that transforms declarative markup into interactive components, organizing application logic through a model-view-controller pattern. By utilizing a centralized dependency injection container, the framework manages the lifecycle of services and components to ensure modularity and maintainable architecture.

The framework is defined by its two-way data binding mechanism, which automatically synchronizes data models wit
- [parse-community/parse-server](https://awesome-repositories.com/repository/parse-community-parse-server.md) (21,403 ⭐) — Parse Server is a backend-as-a-service solution and Node.js framework that provides a ready-to-use REST and GraphQL API for mobile and web applications. It functions as a core backend infrastructure for managing database schemas, user authentication, and API routing.

The system distinguishes itself with a real-time data engine that pushes database updates to clients via WebSockets and a GraphQL server that automatically generates schemas based on application data models. It also features an adapter-based storage layer that abstracts interactions with various cloud and local backends.

The pla
- [you-dont-need/you-dont-need-momentjs](https://awesome-repositories.com/repository/you-dont-need-you-dont-need-momentjs.md) (13,298 ⭐) — This project is a documentation and tooling resource designed to guide the migration from heavy date libraries to native JavaScript functions. It provides a date API migration guide, a utility reference for native replacements of common date tasks, and an ESLint plugin to identify outdated library usage.

The tooling identifies redundant date library patterns via a linting plugin that suggests modern native alternatives. This process supports legacy code refactoring and frontend bundle optimization by replacing external dependencies with built-in language functions.

The resource covers broade