diff --git a/docs/reference/esql/functions/description/to_date_nanos.asciidoc b/docs/reference/esql/functions/description/to_date_nanos.asciidoc
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@@ -0,0 +1,7 @@
+// This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
+
+*Description*
+
+Converts an input to a nanosecond-resolution date value (aka date_nanos).
+
+NOTE: The range for date nanos is 1970-01-01T00:00:00.000000000Z to 2262-04-11T23:47:16.854775807Z, attepting to convertvalues outside of that range will result in null with a warning..  Additionally, integers cannot be converted into date nanos, as the range of integer nanoseconds only covers about 2 seconds after epoch.
diff --git a/docs/reference/esql/functions/kibana/definition/to_date_nanos.json b/docs/reference/esql/functions/kibana/definition/to_date_nanos.json
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@@ -0,0 +1,95 @@
+{
+  "comment" : "This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.",
+  "type" : "eval",
+  "name" : "to_date_nanos",
+  "description" : "Converts an input to a nanosecond-resolution date value (aka date_nanos).",
+  "note" : "The range for date nanos is 1970-01-01T00:00:00.000000000Z to 2262-04-11T23:47:16.854775807Z, attepting to convertvalues outside of that range will result in null with a warning..  Additionally, integers cannot be converted into date nanos, as the range of integer nanoseconds only covers about 2 seconds after epoch.",
+  "signatures" : [
+    {
+      "params" : [
+        {
+          "name" : "field",
+          "type" : "date",
+          "optional" : false,
+          "description" : "Input value. The input can be a single- or multi-valued column or an expression."
+        }
+      ],
+      "variadic" : false,
+      "returnType" : "date_nanos"
+    },
+    {
+      "params" : [
+        {
+          "name" : "field",
+          "type" : "date_nanos",
+          "optional" : false,
+          "description" : "Input value. The input can be a single- or multi-valued column or an expression."
+        }
+      ],
+      "variadic" : false,
+      "returnType" : "date_nanos"
+    },
+    {
+      "params" : [
+        {
+          "name" : "field",
+          "type" : "double",
+          "optional" : false,
+          "description" : "Input value. The input can be a single- or multi-valued column or an expression."
+        }
+      ],
+      "variadic" : false,
+      "returnType" : "date_nanos"
+    },
+    {
+      "params" : [
+        {
+          "name" : "field",
+          "type" : "keyword",
+          "optional" : false,
+          "description" : "Input value. The input can be a single- or multi-valued column or an expression."
+        }
+      ],
+      "variadic" : false,
+      "returnType" : "date_nanos"
+    },
+    {
+      "params" : [
+        {
+          "name" : "field",
+          "type" : "long",
+          "optional" : false,
+          "description" : "Input value. The input can be a single- or multi-valued column or an expression."
+        }
+      ],
+      "variadic" : false,
+      "returnType" : "date_nanos"
+    },
+    {
+      "params" : [
+        {
+          "name" : "field",
+          "type" : "text",
+          "optional" : false,
+          "description" : "Input value. The input can be a single- or multi-valued column or an expression."
+        }
+      ],
+      "variadic" : false,
+      "returnType" : "date_nanos"
+    },
+    {
+      "params" : [
+        {
+          "name" : "field",
+          "type" : "unsigned_long",
+          "optional" : false,
+          "description" : "Input value. The input can be a single- or multi-valued column or an expression."
+        }
+      ],
+      "variadic" : false,
+      "returnType" : "date_nanos"
+    }
+  ],
+  "preview" : false,
+  "snapshot_only" : false
+}
diff --git a/docs/reference/esql/functions/kibana/docs/to_date_nanos.md b/docs/reference/esql/functions/kibana/docs/to_date_nanos.md
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+++ b/docs/reference/esql/functions/kibana/docs/to_date_nanos.md
@@ -0,0 +1,8 @@
+<!--
+This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
+-->
+
+### TO_DATE_NANOS
+Converts an input to a nanosecond-resolution date value (aka date_nanos).
+
+Note: The range for date nanos is 1970-01-01T00:00:00.000000000Z to 2262-04-11T23:47:16.854775807Z, attepting to convertvalues outside of that range will result in null with a warning..  Additionally, integers cannot be converted into date nanos, as the range of integer nanoseconds only covers about 2 seconds after epoch.
diff --git a/docs/reference/esql/functions/layout/to_date_nanos.asciidoc b/docs/reference/esql/functions/layout/to_date_nanos.asciidoc
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index 0000000000000..2dfd13dac7e20
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+++ b/docs/reference/esql/functions/layout/to_date_nanos.asciidoc
@@ -0,0 +1,14 @@
+// This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
+
+[discrete]
+[[esql-to_date_nanos]]
+=== `TO_DATE_NANOS`
+
+*Syntax*
+
+[.text-center]
+image::esql/functions/signature/to_date_nanos.svg[Embedded,opts=inline]
+
+include::../parameters/to_date_nanos.asciidoc[]
+include::../description/to_date_nanos.asciidoc[]
+include::../types/to_date_nanos.asciidoc[]