⏰ Modern datetime library for Python

CLI tool to convert a natural language date/time string to UTC

Fast and simple datetime, date, time and duration parsing for rust.

A fast pure Swift RFC 3339 timestamp parser

An extremely fast parser and formatter of standardized date and date-times supporting RFC-3339 (ISO-8601 profile) and more.

A lexer and parser for ISO 8601, RFC 3339, and IXDTF temporal expressions, built with compiler design principles.

more than 80 gpl3+ licensed guile scheme libraries

A pure python RFC3339 validator

Rust crate for date, time, and timezone manipulation. Parse, format, validate, and convert RFC 3339 / ISO 8601 with guaranteed round-trip safety.

Convert an epoch timestamp to a human readable timestamp.

RFC 3339 Date Parser

⏱ Opinionated Python library to produce and transform timestamps to a strict RFC 3339 format – Date and Time on the Internet.

A single C header utility to parse and format RFC 3339 timestamps

Website to convert any datetime string to UTC

Parsers for ABNF Syntaxes

Date parsing library supporting the full format RFC3339

A high-performance, type-safe Ada library for handling time zones using the IANA Time Zone Database. Built with modern software engineering practices including Domain-Driven Design, Clean Architecture, and comprehensive contract-based programming.

Curated list of awesome UTC resources

JAVA DataTimeFormatter to strictly parse (and format) RFC3339 timestamps

Golang logging library with minimal dependencies, consistent log format and RFC3339 timestamps.