diff --git a/Cargo.lock b/Cargo.lock
index 4a6c4d54..adcf5c3c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -605,7 +605,7 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql"
-version = "0.13.6"
+version = "0.13.7"
 dependencies = [
  "criterion",
  "once_cell",
@@ -624,7 +624,7 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql-ast-derive"
-version = "0.13.6"
+version = "0.13.7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -633,7 +633,7 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql-ffi"
-version = "0.13.6"
+version = "0.13.7"
 dependencies = [
  "cbindgen",
  "polyglot-sql",
@@ -643,11 +643,11 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql-function-catalogs"
-version = "0.13.6"
+version = "0.13.7"
 
 [[package]]
 name = "polyglot-sql-python"
-version = "0.13.6"
+version = "0.13.7"
 dependencies = [
  "polyglot-sql",
  "pyo3",
@@ -658,7 +658,7 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql-wasm"
-version = "0.13.6"
+version = "0.13.7"
 dependencies = [
  "console_error_panic_hook",
  "js-sys",
diff --git a/Cargo.toml b/Cargo.toml
index 59bd6d81..db026e85 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ exclude = [
 ]
 
 [workspace.package]
-version = "0.13.6"
+version = "0.13.7"
 edition = "2021"
 license = "MIT"
 authors = ["polyglot contributors"]
diff --git a/README.md b/README.md
index d9695225..f71d9881 100644
--- a/README.md
+++ b/README.md
@@ -306,7 +306,7 @@ If you want to disable `stacker` for a native Rust build, turn off default featu
 
 ```toml
 [dependencies]
-polyglot-sql = { version = "0.13.6", default-features = false, features = ["all-dialects", "transpile"] }
+polyglot-sql = { version = "0.13.7", default-features = false, features = ["all-dialects", "transpile"] }
 ```
 
 That can reduce overhead slightly on trusted inputs, but you lose the default stack-growth protection for deeply nested SQL.
diff --git a/crates/polyglot-sql-function-catalogs/README.md b/crates/polyglot-sql-function-catalogs/README.md
index c677fdf6..6edc4e0f 100644
--- a/crates/polyglot-sql-function-catalogs/README.md
+++ b/crates/polyglot-sql-function-catalogs/README.md
@@ -25,7 +25,7 @@ With `polyglot-sql` compile-time wiring (recommended):
 
 ```toml
 [dependencies]
-polyglot-sql = { version = "0.13.6", features = ["function-catalog-clickhouse"] }
+polyglot-sql = { version = "0.13.7", features = ["function-catalog-clickhouse"] }
 ```
 
 Then run schema validation with type checks:
diff --git a/crates/polyglot-sql/Cargo.toml b/crates/polyglot-sql/Cargo.toml
index 983d8774..1fc3ecba 100644
--- a/crates/polyglot-sql/Cargo.toml
+++ b/crates/polyglot-sql/Cargo.toml
@@ -100,14 +100,14 @@ function-catalog-all-dialects = [
 
 [dependencies]
 regex = { version = "1", optional = true }
-polyglot-sql-ast-derive = { path = "../polyglot-sql-ast-derive", version = "0.13.6" }
+polyglot-sql-ast-derive = { path = "../polyglot-sql-ast-derive", version = "0.13.7" }
 serde = { workspace = true }
 serde_json = { workspace = true }
 thiserror = { workspace = true }
 unicode-segmentation = { workspace = true }
 stacker = { version = "0.1", optional = true }
 ts-rs = { version = "12.0", features = ["serde-compat"], optional = true }
-polyglot-sql-function-catalogs = { path = "../polyglot-sql-function-catalogs", version = "0.13.6", optional = true, default-features = false }
+polyglot-sql-function-catalogs = { path = "../polyglot-sql-function-catalogs", version = "0.13.7", optional = true, default-features = false }
 
 [dev-dependencies]
 pretty_assertions = "1.4"
diff --git a/crates/polyglot-sql/README.md b/crates/polyglot-sql/README.md
index 01c87eff..8b16c939 100644
--- a/crates/polyglot-sql/README.md
+++ b/crates/polyglot-sql/README.md
@@ -25,12 +25,12 @@ By default, `polyglot-sql` enables the full public API. Parser-only consumers ca
 disable default features and opt into only the dialect parsers they need:
 
 ```toml
-polyglot-sql = { version = "0.13.6", default-features = false }
+polyglot-sql = { version = "0.13.7", default-features = false }
 ```
 
 ```toml
 polyglot-sql = {
-    version = "0.13.6",
+    version = "0.13.7",
     default-features = false,
     features = ["dialect-clickhouse"],
 }
@@ -44,14 +44,14 @@ Examples:
 ```toml
 # Parse and generate SQL for one dialect.
 polyglot-sql = {
-    version = "0.13.6",
+    version = "0.13.7",
     default-features = false,
     features = ["generate", "dialect-clickhouse"],
 }
 
 # Cross-dialect transpilation.
 polyglot-sql = {
-    version = "0.13.6",
+    version = "0.13.7",
     default-features = false,
     features = ["transpile", "dialect-clickhouse", "dialect-postgresql"],
 }
diff --git a/crates/polyglot-sql/src/validation.rs b/crates/polyglot-sql/src/validation.rs
index 7b067be5..3b77797e 100644
--- a/crates/polyglot-sql/src/validation.rs
+++ b/crates/polyglot-sql/src/validation.rs
@@ -1614,6 +1614,15 @@ fn check_generic_function(
     }
 }
 
+/// DuckDB rewrites these SQL keywords itself; they are not callable functions,
+/// so only the bracket-free keyword form is valid.
+const DUCKDB_KEYWORD_ONLY_FUNCTIONS: [&str; 4] = [
+    "current_time",
+    "current_timestamp",
+    "localtime",
+    "localtimestamp",
+];
+
 fn check_function_catalog(
     function: &Function,
     dialect: DialectType,
@@ -1621,6 +1630,24 @@ fn check_function_catalog(
     strict: bool,
     errors: &mut Vec<ValidationError>,
 ) {
+    if function_catalog.is_some()
+        && dialect == DialectType::DuckDB
+        && !function.no_parens
+        && DUCKDB_KEYWORD_ONLY_FUNCTIONS
+            .iter()
+            .any(|keyword| function_base_name(&function.name).eq_ignore_ascii_case(keyword))
+    {
+        let message = format!(
+            "Unknown function '{}' for dialect {:?}",
+            function.name, dialect
+        );
+        errors.push(if strict {
+            ValidationError::error(message, validation_codes::E_UNKNOWN_FUNCTION)
+        } else {
+            ValidationError::warning(message, validation_codes::E_UNKNOWN_FUNCTION)
+        });
+        return;
+    }
     check_named_function_catalog(
         &function.name,
         function.args.len(),
diff --git a/crates/polyglot-sql/src/validation/tests.rs b/crates/polyglot-sql/src/validation/tests.rs
index ac16cffb..dc5f8e29 100644
--- a/crates/polyglot-sql/src/validation/tests.rs
+++ b/crates/polyglot-sql/src/validation/tests.rs
@@ -1125,6 +1125,42 @@ fn review_builtin_and_unknown_cast_targets_do_not_error() {
     }
 }
 
+#[test]
+fn duckdb_keyword_time_functions_are_valid_only_without_brackets() {
+    let options = SchemaValidationOptions {
+        semantic: true,
+        check_types: true,
+        ..Default::default()
+    };
+    let schema = semantic_type_schema();
+    for sql in [
+        "SELECT CURRENT_TIMESTAMP AS ts",
+        "SELECT current_time AS t",
+        "SELECT LOCALTIMESTAMP AS ts",
+        "SELECT localtime AS t",
+    ] {
+        let result = validate_with_schema(sql, DialectType::DuckDB, &schema, &options);
+        assert!(
+            !result.errors.iter().any(|e| e.code == "E202"),
+            "{sql}: {:?}",
+            result.errors
+        );
+    }
+    for sql in [
+        "SELECT CURRENT_TIMESTAMP() AS ts",
+        "SELECT current_time() AS t",
+        "SELECT LOCALTIMESTAMP() AS ts",
+        "SELECT localtime() AS t",
+    ] {
+        let result = validate_with_schema(sql, DialectType::DuckDB, &schema, &options);
+        assert!(
+            !result.valid && result.errors.iter().any(|e| e.code == "E202"),
+            "{sql}: {:?}",
+            result.errors
+        );
+    }
+}
+
 #[test]
 fn star_sourced_types_are_checked_without_set_operations() {
     let options = SchemaValidationOptions {
diff --git a/examples/rust/Cargo.lock b/examples/rust/Cargo.lock
index 973b2c3c..bb7e426f 100644
--- a/examples/rust/Cargo.lock
+++ b/examples/rust/Cargo.lock
@@ -71,7 +71,7 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql"
-version = "0.13.6"
+version = "0.13.7"
 dependencies = [
  "polyglot-sql-ast-derive",
  "polyglot-sql-function-catalogs",
@@ -85,7 +85,7 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql-ast-derive"
-version = "0.13.6"
+version = "0.13.7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -101,7 +101,7 @@ dependencies = [
 
 [[package]]
 name = "polyglot-sql-function-catalogs"
-version = "0.13.6"
+version = "0.13.7"
 
 [[package]]
 name = "proc-macro2"
diff --git a/examples/rust/Cargo.toml b/examples/rust/Cargo.toml
index 1764682a..82d50ea2 100644
--- a/examples/rust/Cargo.toml
+++ b/examples/rust/Cargo.toml
@@ -5,4 +5,4 @@ edition = "2021"
 publish = false
 
 [dependencies]
-polyglot-sql = { version = "0.13.6", path = "../../crates/polyglot-sql" }
+polyglot-sql = { version = "0.13.7", path = "../../crates/polyglot-sql" }
diff --git a/packages/documentation/package.json b/packages/documentation/package.json
index e33858c3..5df851a1 100644
--- a/packages/documentation/package.json
+++ b/packages/documentation/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polyglot-sql/documentation",
-  "version": "0.13.6",
+  "version": "0.13.7",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/packages/go/README.md b/packages/go/README.md
index 79887ea7..873839a0 100644
--- a/packages/go/README.md
+++ b/packages/go/README.md
@@ -21,7 +21,7 @@ go get github.com/tobilg/polyglot/packages/go
 ```
 
 Go module releases use nested tags that match the root Polyglot release, for
-example `packages/go/v0.13.6`.
+example `packages/go/v0.13.7`.
 
 ## Native Library Setup
 
diff --git a/packages/go/types.go b/packages/go/types.go
index fe1eddc2..84ce5d14 100644
--- a/packages/go/types.go
+++ b/packages/go/types.go
@@ -2,7 +2,7 @@ package polyglot
 
 import "encoding/json"
 
-const sdkVersion = "0.13.6"
+const sdkVersion = "0.13.7"
 
 func Version() string {
 	return sdkVersion
diff --git a/packages/playground/package.json b/packages/playground/package.json
index db70d002..5a52a05b 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polyglot-sql/playground",
-  "version": "0.13.6",
+  "version": "0.13.7",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/packages/python-docs/package.json b/packages/python-docs/package.json
index f544f4bc..f8657aa7 100644
--- a/packages/python-docs/package.json
+++ b/packages/python-docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polyglot-sql/python-docs",
-  "version": "0.13.6",
+  "version": "0.13.7",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/packages/sdk/package.json b/packages/sdk/package.json
index 4f47c171..45607e62 100644
--- a/packages/sdk/package.json
+++ b/packages/sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polyglot-sql/sdk",
-  "version": "0.13.6",
+  "version": "0.13.7",
   "description": "SQL dialect translator powered by WebAssembly",
   "type": "module",
   "main": "./dist/index.cjs",