A fast, zero-allocation ISO8601 date parser for Go that handles any ISO8601 format without regular expressions.
iso8601 is a Go library that parses ISO8601 date-time strings into Go's native time.Time objects. It solves the problem of Go's built-in RFC3333 layout being too restrictive, allowing developers to handle any ISO8601 format encountered in APIs, databases, or data files. The library is designed for speed and zero memory allocations, making it efficient for high-performance applications.
Go developers working with external APIs, data processing pipelines, or systems that consume or produce ISO8601 date-time strings in various formats.
Developers choose iso8601 because it provides full ISO8601 compliance without the overhead of regular expressions, offers benchmarked performance with zero allocations, and integrates seamlessly as a drop-in replacement for time.Time in JSON unmarshaling scenarios.
A fast ISO8601 date parser for Go
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Parses any valid ISO8601 date-time string, addressing Go's restrictive RFC3333 limitation, which is essential for handling diverse data from external APIs and databases.
Benchmarks show 0 allocations per operation and 30.89 ns/op, making it highly efficient for high-throughput data processing scenarios.
The iso8601.Time type can be used interchangeably with time.Time for JSON unmarshaling, simplifying integration without code changes, as demonstrated in the usage example.
Implements parsing without regular expressions, ensuring clarity and avoiding regex overhead, which contributes to its performance and maintainability.
The library is designed solely for parsing ISO8601 strings; it does not provide formatting or other date utilities, which may require additional libraries for full date handling.
Adds an external dependency for date parsing, which could be unnecessary if your project only needs basic RFC3333 parsing already covered by Go's standard library.
Only handles ISO8601 formats; for other date formats, developers must use different parsers, increasing complexity in mixed-format environments.