diff --git a/Cargo.lock b/Cargo.lock
index b6b9a0a8..0390d7e5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -411,9 +411,27 @@ version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed0ce60560149333a8e41ca7dc78799c47c5fd435e2bc18faf6a054382eec037"
 dependencies = [
+ "jiff-tzdb-platform",
+ "log",
  "portable-atomic",
  "portable-atomic-util",
  "serde",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "jiff-tzdb"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91335e575850c5c4c673b9bd467b0e025f164ca59d0564f69d0c2ee0ffad4653"
+
+[[package]]
+name = "jiff-tzdb-platform"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9835f0060a626fe59f160437bc725491a6af23133ea906500027d1bd2f8f4329"
+dependencies = [
+ "jiff-tzdb",
 ]
 
 [[package]]
diff --git a/schemars/Cargo.toml b/schemars/Cargo.toml
index ad8a4f06..8ae96d41 100644
--- a/schemars/Cargo.toml
+++ b/schemars/Cargo.toml
@@ -52,7 +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" }
+jiff01 = { version = "0.1", 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
index ad1f60aa..047ed5a9 100644
--- a/schemars/src/json_schema_impls/jiff01.rs
+++ b/schemars/src/json_schema_impls/jiff01.rs
@@ -31,7 +31,7 @@ macro_rules! formatted_string_impl {
 
 formatted_string_impl!(SignedDuration, "duration");
 formatted_string_impl!(Timestamp, "date-time");
-formatted_string_impl!(Zoned, "date-time");
+formatted_string_impl!(Zoned, "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/tests/integration/jiff.rs b/schemars/tests/integration/jiff.rs
index e2db56c3..aacd8f43 100644
--- a/schemars/tests/integration/jiff.rs
+++ b/schemars/tests/integration/jiff.rs
@@ -19,9 +19,12 @@ fn jiff() {
         .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!(Zoned)
+        .assert_allows_ser_roundtrip_default()
+        .assert_matches_de_roundtrip(arbitrary_values_except(
+            Value::is_string,
+            "Custom format 'zoned-date-time', so arbitrary strings technically allowed by schema",
+        ));
 
     test!(Date)
         .assert_allows_ser_roundtrip_default()
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
index 3a089e82..39e14989 100644
--- a/schemars/tests/integration/snapshots/schemars/tests/integration/jiff.rs~jiff.json
+++ b/schemars/tests/integration/snapshots/schemars/tests/integration/jiff.rs~jiff.json
@@ -9,7 +9,7 @@
     },
     "date_time_zoned": {
       "type": "string",
-      "format": "date-time"
+      "format": "zoned-date-time"
     },
     "naive_date": {
       "type": "string",