diff --git a/Cargo.lock b/Cargo.lock
index 30bc80c8..b6b9a0a8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -405,6 +405,17 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
 
+[[package]]
+name = "jiff"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed0ce60560149333a8e41ca7dc78799c47c5fd435e2bc18faf6a054382eec037"
+dependencies = [
+ "portable-atomic",
+ "portable-atomic-util",
+ "serde",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.70"
@@ -630,6 +641,21 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
+[[package]]
+name = "portable-atomic"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "280dc24453071f1b63954171985a0b0d30058d287960968b9b2aca264c8d4ee6"
+
+[[package]]
+name = "portable-atomic-util"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8a2f0d8d040d7848a709caf78912debcc3f33ee4b3cac47d73d1e1069e83507"
+dependencies = [
+ "portable-atomic",
+]
+
 [[package]]
 name = "powerfmt"
 version = "0.2.0"
@@ -781,6 +807,7 @@ dependencies = [
  "either",
  "garde",
  "indexmap",
+ "jiff",
  "jsonschema",
  "pretty_assertions",
  "ref-cast",
diff --git a/README.md b/README.md
index fc68efc7..3e55e2dc 100644
--- a/README.md
+++ b/README.md
@@ -269,6 +269,7 @@ Schemars can implement `JsonSchema` on types from several popular crates, enable
 - `chrono04` - [chrono](https://crates.io/crates/chrono) (^0.4)
 - `either1` - [either](https://crates.io/crates/either) (^1.3)
 - `indexmap2` - [indexmap](https://crates.io/crates/indexmap) (^2.0)
+- `jiff01` - [jiff](https://crates.io/crates/jiff) (^0.1)
 - `rust_decimal1` - [rust_decimal](https://crates.io/crates/rust_decimal) (^1.0)
 - `semver1` - [semver](https://crates.io/crates/semver) (^1.0.9)
 - `smallvec1` - [smallvec](https://crates.io/crates/smallvec) (^1.0)
diff --git a/schemars/Cargo.toml b/schemars/Cargo.toml
index ca7ffbbc..ad8a4f06 100644
--- a/schemars/Cargo.toml
+++ b/schemars/Cargo.toml
@@ -26,6 +26,7 @@ bytes1 = { version = "1.0", default-features = false, optional = true, package =
 chrono04 = { version = "0.4", default-features = false, optional = true, package = "chrono" }
 either1 = { version = "1.3", default-features = false, optional = true, package = "either" }
 indexmap2 = { version = "2.0", default-features = false, optional = true, package = "indexmap" }
+jiff01 = { version = "0.1", default-features = false, optional = true, package = "jiff" }
 rust_decimal1 = { version = "1", default-features = false, optional = true, package = "rust_decimal" }
 semver1 = { version = "1.0.9", default-features = false, optional = true, package = "semver" }
 smallvec1 = { version = "1.0", default-features = false, optional = true, package = "smallvec" }
@@ -51,6 +52,7 @@ bytes1 = { version = "1.0", default-features = false, features = ["serde"], pack
 chrono04 = { version = "0.4", default-features = false, features = ["serde"], package = "chrono" }
 either1 = { version = "1.3", default-features = false, features = ["serde"], package = "either" }
 indexmap2 = { version = "2.0", default-features = false, features = ["serde"], package = "indexmap" }
+jiff01 = { version = "0.1", default-features = false, features = ["serde"], package = "jiff" }
 rust_decimal1 = { version = "1", default-features = false, features = ["serde"], package = "rust_decimal" }
 semver1 = { version = "1.0.9", default-features = false, features = ["serde"], package = "semver" }
 smallvec1 = { version = "1.0", default-features = false, features = ["serde"], package = "smallvec" }
diff --git a/schemars/src/json_schema_impls/jiff01.rs b/schemars/src/json_schema_impls/jiff01.rs
new file mode 100644
index 00000000..ad1f60aa
--- /dev/null
+++ b/schemars/src/json_schema_impls/jiff01.rs
@@ -0,0 +1,37 @@
+use crate::{json_schema, JsonSchema, Schema, SchemaGenerator};
+use alloc::borrow::Cow;
+use jiff01::civil::{Date, DateTime, Time};
+use jiff01::{SignedDuration, Timestamp, Zoned};
+
+macro_rules! formatted_string_impl {
+    ($ty:ident, $format:literal) => {
+        formatted_string_impl!($ty, $format, JsonSchema for $ty);
+    };
+    ($ty:ident, $format:literal, $($desc:tt)+) => {
+        impl $($desc)+ {
+            always_inline!();
+
+            fn schema_name() -> Cow<'static, str> {
+                stringify!($ty).into()
+            }
+
+            fn schema_id() -> Cow<'static, str>  {
+                stringify!(jiff::$ty).into()
+            }
+
+            fn json_schema(_: &mut SchemaGenerator) -> Schema {
+                json_schema!({
+                    "type": "string",
+                    "format": $format
+                })
+            }
+        }
+    };
+}
+
+formatted_string_impl!(SignedDuration, "duration");
+formatted_string_impl!(Timestamp, "date-time");
+formatted_string_impl!(Zoned, "date-time");
+formatted_string_impl!(Date, "date");
+formatted_string_impl!(Time, "partial-time");
+formatted_string_impl!(DateTime, "partial-date-time");
diff --git a/schemars/src/json_schema_impls/mod.rs b/schemars/src/json_schema_impls/mod.rs
index cbe1a075..53b08dd9 100644
--- a/schemars/src/json_schema_impls/mod.rs
+++ b/schemars/src/json_schema_impls/mod.rs
@@ -74,6 +74,9 @@ mod either1;
 #[cfg(feature = "indexmap2")]
 mod indexmap2;
 
+#[cfg(feature = "jiff01")]
+mod jiff01;
+
 #[cfg(feature = "semver1")]
 mod semver1;
 
diff --git a/schemars/tests/integration/jiff.rs b/schemars/tests/integration/jiff.rs
new file mode 100644
index 00000000..e2db56c3
--- /dev/null
+++ b/schemars/tests/integration/jiff.rs
@@ -0,0 +1,43 @@
+use crate::prelude::*;
+use jiff01::civil::{Date, DateTime, Time};
+use jiff01::{Timestamp, Zoned};
+
+#[derive(JsonSchema, Serialize, Deserialize)]
+struct JiffTypes {
+    date_time_ts: Timestamp,
+    date_time_zoned: Zoned,
+    naive_date: Date,
+    naive_date_time: DateTime,
+    naive_time: Time,
+}
+
+#[test]
+fn jiff() {
+    test!(JiffTypes).assert_snapshot();
+
+    test!(Timestamp)
+        .assert_allows_ser_roundtrip_default()
+        .assert_matches_de_roundtrip(arbitrary_values());
+
+    // test!(Zoned)
+    //     .assert_allows_ser_roundtrip_default()
+    //     .assert_matches_de_roundtrip(arbitrary_values());
+
+    test!(Date)
+        .assert_allows_ser_roundtrip_default()
+        .assert_matches_de_roundtrip(arbitrary_values());
+
+    test!(DateTime)
+        .assert_allows_ser_roundtrip_default()
+        .assert_matches_de_roundtrip(arbitrary_values_except(
+            Value::is_string,
+            "Custom format 'partial-date-time', so arbitrary strings technically allowed by schema",
+        ));
+
+    test!(Time)
+        .assert_allows_ser_roundtrip_default()
+        .assert_matches_de_roundtrip(arbitrary_values_except(
+            Value::is_string,
+            "Custom format 'date-time', so arbitrary strings technically allowed by schema",
+        ));
+}
diff --git a/schemars/tests/integration/main.rs b/schemars/tests/integration/main.rs
index eb445268..8417102e 100644
--- a/schemars/tests/integration/main.rs
+++ b/schemars/tests/integration/main.rs
@@ -28,6 +28,8 @@ mod garde;
 #[cfg(feature = "indexmap2")]
 mod indexmap;
 mod inline_subschemas;
+#[cfg(feature = "jiff01")]
+mod jiff;
 mod macros;
 mod remote_derive;
 mod same_name;
diff --git a/schemars/tests/integration/snapshots/schemars/tests/integration/jiff.rs~jiff.json b/schemars/tests/integration/snapshots/schemars/tests/integration/jiff.rs~jiff.json
new file mode 100644
index 00000000..3a089e82
--- /dev/null
+++ b/schemars/tests/integration/snapshots/schemars/tests/integration/jiff.rs~jiff.json
@@ -0,0 +1,34 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "title": "JiffTypes",
+  "type": "object",
+  "properties": {
+    "date_time_ts": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "date_time_zoned": {
+      "type": "string",
+      "format": "date-time"
+    },
+    "naive_date": {
+      "type": "string",
+      "format": "date"
+    },
+    "naive_date_time": {
+      "type": "string",
+      "format": "partial-date-time"
+    },
+    "naive_time": {
+      "type": "string",
+      "format": "partial-time"
+    }
+  },
+  "required": [
+    "date_time_ts",
+    "date_time_zoned",
+    "naive_date",
+    "naive_date_time",
+    "naive_time"
+  ]
+}
\ No newline at end of file