diff --git a/README.md b/README.md
index c60c133fd..ad93ca2d0 100644
--- a/README.md
+++ b/README.md
@@ -850,6 +850,13 @@ datetime.parse("2020-01-01T00:00:00.123+02"); // pass (only offset hours)
 datetime.parse("2020-01-01T00:00:00Z"); // pass (Z still supported)
 ```
 
+Allow unqualified (timezone-less) datetimes with the `local` flag.
+
+```ts
+const schema = z.string().datetime({ local: true });
+schema.parse("2020-01-01T00:00:00"); // pass
+```
+
 You can additionally constrain the allowable `precision`. By default, arbitrary sub-second precision is supported (but optional).
 
 ```ts
diff --git a/deno/lib/README.md b/deno/lib/README.md
index 2f5af57c2..aeaf25dc0 100644
--- a/deno/lib/README.md
+++ b/deno/lib/README.md
@@ -860,6 +860,13 @@ datetime.parse("2020-01-01T00:00:00.123+02"); // pass (only offset hours)
 datetime.parse("2020-01-01T00:00:00Z"); // pass (Z still supported)
 ```
 
+Allow unqualified (timezone-less) datetimes with the `local` flag.
+
+```ts
+const schema = z.string().datetime({ local: true });
+schema.parse("2020-01-01T00:00:00"); // pass
+```
+
 You can additionally constrain the allowable `precision`. By default, arbitrary sub-second precision is supported (but optional).
 
 ```ts