Replace chrono feature with jiff

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- [**breaking**] Replace the optional `chrono` feature with a `jiff` feature.
+- [**breaking**] When the `jiff` feature is enabled, formatting `Time` values outside jiff's supported timestamp range now yields "∞" / "-∞" (instead of a formatted date or always "∞").
 ## [0.15.0](https://github.com/moia-oss/tinytime.rs/compare/v0.14.4...v0.15.0) - 2026-03-09
 
 ### Other

Cargo.toml

@@ -12,12 +12,12 @@ keywords = ["time", "tiny", "low-overhead"]
 categories = ["date-and-time"]
 
 [features]
-chrono = ["dep:chrono"]
+jiff = ["dep:jiff"]
 rand = ["dep:rand"]
 serde = ["dep:serde"]
 
 [dependencies]
-chrono = { version = "0.4.45", features = ["alloc"], default-features = false, optional = true }
+jiff = { version = "0.2.28", features = ["alloc"], default-features = false, optional = true }
 rand = { version = "0.10.1", features = ["thread_rng"], default-features = false, optional = true }
 serde = { version = "1.0.228", features = ["derive"], default-features = false, optional = true }