diff --git a/packages/server/src/sdk/app/rows/tests/utils.spec.ts b/packages/server/src/sdk/app/rows/tests/utils.spec.ts
new file mode 100644
index 0000000000..38c2c64d6b
--- /dev/null
+++ b/packages/server/src/sdk/app/rows/tests/utils.spec.ts
@@ -0,0 +1,48 @@
+import {
+  FieldType,
+  INTERNAL_TABLE_SOURCE_ID,
+  Table,
+  TableSourceType,
+} from "@budibase/types"
+import { generateTableID } from "../../../../db/utils"
+import { validate } from "../utils"
+
+describe("validate", () => {
+  describe("time only", () => {
+    const getTable = (): Table => ({
+      type: "table",
+      _id: generateTableID(),
+      name: "table",
+      sourceId: INTERNAL_TABLE_SOURCE_ID,
+      sourceType: TableSourceType.INTERNAL,
+      schema: {
+        time: {
+          name: "time",
+          type: FieldType.DATETIME,
+          timeOnly: true,
+        },
+      },
+    })
+
+    it("should accept empty fields", async () => {
+      const row = {}
+      const table = getTable()
+      const output = await validate({ table, tableId: table._id!, row })
+      expect(output.valid).toBe(true)
+      expect(output.errors).toEqual({})
+    })
+
+    describe("required", () => {
+      it("should reject empty fields", async () => {
+        const row = {}
+        const table = getTable()
+        table.schema.time.constraints = {
+          presence: true,
+        }
+        const output = await validate({ table, tableId: table._id!, row })
+        expect(output.valid).toBe(false)
+        expect(output.errors).toEqual({ time: ["can't be blank"] })
+      })
+    })
+  })
+})