diff --git a/packages/gatsby/src/schema/__tests__/__snapshots__/infer-graphql-type-test.js.snap b/packages/gatsby/src/schema/__tests__/__snapshots__/infer-graphql-type-test.js.snap
index 9fb28ffd45b81..f3fb4e067e9cc 100644
--- a/packages/gatsby/src/schema/__tests__/__snapshots__/infer-graphql-type-test.js.snap
+++ b/packages/gatsby/src/schema/__tests__/__snapshots__/infer-graphql-type-test.js.snap
@@ -1,5 +1,20 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`GraphQL type inferance Handles dates Date type inference 1`] = `
+Object {
+  "data": Object {
+    "listNode": Array [
+      Object {
+        "dateObject": "2012-11-05T00:00:00.000Z",
+      },
+      Object {
+        "dateObject": "2012-11-05T00:00:00.000Z",
+      },
+    ],
+  },
+}
+`;
+
 exports[`GraphQL type inferance Infers graphql type from array of nodes 1`] = `
 Object {
   "data": Object {
@@ -115,18 +130,3 @@ Object {
   },
 }
 `;
-
-exports[`GraphQL type inferance handles date objects 1`] = `
-Object {
-  "data": Object {
-    "listNode": Array [
-      Object {
-        "dateObject": "2012-11-05T00:00:00.000Z",
-      },
-      Object {
-        "dateObject": "2012-11-05T00:00:00.000Z",
-      },
-    ],
-  },
-}
-`;
diff --git a/packages/gatsby/src/schema/__tests__/infer-graphql-input-type-test.js b/packages/gatsby/src/schema/__tests__/infer-graphql-input-type-test.js
index dd11b0e4448d9..5bbc1e05d9d0c 100644
--- a/packages/gatsby/src/schema/__tests__/infer-graphql-input-type-test.js
+++ b/packages/gatsby/src/schema/__tests__/infer-graphql-input-type-test.js
@@ -78,6 +78,7 @@ function queryResult(nodes, query, { types = [] } = {}) {
 describe(`GraphQL Input args`, () => {
   const nodes = [
     {
+      index: 0,
       name: `The Mad Max`,
       hair: 1,
       date: `2006-07-22T22:39:53.000Z`,
@@ -103,9 +104,9 @@ describe(`GraphQL Input args`, () => {
       boolean: true,
     },
     {
+      index: 1,
       name: `The Mad Wax`,
       hair: 2,
-      date: `2006-07-22T22:39:53.000Z`,
       anArray: [1, 2, 5, 4],
       frontmatter: {
         date: `2006-07-22T22:39:53.000Z`,
@@ -116,9 +117,10 @@ describe(`GraphQL Input args`, () => {
       boolean: false,
     },
     {
+      index: 2,
       name: `The Mad Wax`,
       hair: 0,
-      date: `2006-07-22T22:39:53.000Z`,
+      date: `2006-07-29T22:39:53.000Z`,
       frontmatter: {
         date: `2006-07-22T22:39:53.000Z`,
         title: `The world of shave and adventure`,
@@ -375,6 +377,23 @@ describe(`GraphQL Input args`, () => {
     expect(result.data.allNode.edges[0].node.name).toEqual(`The Mad Wax`)
   })
 
+  it(`filters date fields`, async () => {
+    let result = await queryResult(
+      nodes,
+      `
+        {
+          allNode(filter: {date: { ne: null }}) {
+            edges { node { index }}
+          }
+        }
+      `
+    )
+    expect(result.errors).not.toBeDefined()
+    expect(result.data.allNode.edges.length).toEqual(2)
+    expect(result.data.allNode.edges[0].node.index).toEqual(0)
+    expect(result.data.allNode.edges[1].node.index).toEqual(2)
+  })
+
   it(`sorts results`, async () => {
     let result = await queryResult(
       nodes,
diff --git a/packages/gatsby/src/schema/__tests__/infer-graphql-type-test.js b/packages/gatsby/src/schema/__tests__/infer-graphql-type-test.js
index 8fc2190ce8c27..b6c3f7002bb1d 100644
--- a/packages/gatsby/src/schema/__tests__/infer-graphql-type-test.js
+++ b/packages/gatsby/src/schema/__tests__/infer-graphql-type-test.js
@@ -123,29 +123,6 @@ describe(`GraphQL type inferance`, () => {
     expect(result.data.listNode[0].number).toEqual(1.1)
   })
 
-  it(`handles integer with valid date format`, async () => {
-    let result = await queryResult(
-      [{ number: 2018 }, { number: 1987 }],
-      `
-        number
-      `
-    )
-    expect(result.data.listNode[0].number).toEqual(2018)
-  })
-
-  it(`handles date objects`, async () => {
-    let result = await queryResult(
-      [
-        { dateObject: new Date(Date.UTC(2012, 10, 5)) },
-        { dateObject: new Date(Date.UTC(2012, 10, 5)) },
-      ],
-      `
-        dateObject
-      `
-    )
-    expect(result).toMatchSnapshot()
-  })
-
   it(`filters out empty objects`, async () => {
     let result = await queryResult(
       [{ foo: {}, bar: `baz` }],
@@ -211,6 +188,57 @@ describe(`GraphQL type inferance`, () => {
     expect(Object.keys(fields.foo.type.getFields())).toHaveLength(4)
   })
 
+  describe(`Handles dates`, () => {
+    it(`Handles integer with valid date format`, async () => {
+      let result = await queryResult(
+        [{ number: 2018 }, { number: 1987 }],
+        `
+          number
+        `
+      )
+      expect(result.data.listNode[0].number).toEqual(2018)
+    })
+
+    it(`Date type inference`, async () => {
+      let result = await queryResult(
+        [
+          { dateObject: new Date(Date.UTC(2012, 10, 5)) },
+          { dateObject: new Date(Date.UTC(2012, 10, 5)) },
+        ],
+        `
+          dateObject
+        `
+      )
+      expect(result).toMatchSnapshot()
+    })
+
+    it(`Infers from date strings`, async () => {
+      let result = await queryResult(
+        [{ date: `1012-11-01` }],
+        `
+          date(formatString:"DD.MM.YYYY")
+        `
+      )
+
+      expect(result.errors).not.toBeDefined()
+      expect(result.data.listNode[0].date).toEqual(`01.11.1012`)
+    })
+
+    it(`Infers from arrays of date strings`, async () => {
+      let result = await queryResult(
+        [{ date: [`1012-11-01`, `10390203`] }],
+        `
+          date(formatString:"DD.MM.YYYY")
+        `
+      )
+
+      expect(result.errors).not.toBeDefined()
+      expect(result.data.listNode[0].date.length).toEqual(2)
+      expect(result.data.listNode[0].date[0]).toEqual(`01.11.1012`)
+      expect(result.data.listNode[0].date[1]).toEqual(`03.02.1039`)
+    })
+  })
+
   xdescribe(`Linked inference from config mappings`)
 
   describe(`Linked inference from file URIs`, () => {