diff --git a/chrome/content/zotero/bindings/itembox.xml b/chrome/content/zotero/bindings/itembox.xml
index 11dd51c123..99e18ca13c 100644
--- a/chrome/content/zotero/bindings/itembox.xml
+++ b/chrome/content/zotero/bindings/itembox.xml
@@ -1854,7 +1854,7 @@
 					
 					// Fields
 					else {
-						// Access date needs to be parsed and converted to UTC
+						// Access date needs to be parsed and converted to UTC SQL date
 						if (value != '') {
 							switch (fieldName) {
 								case 'accessDate':
diff --git a/chrome/content/zotero/xpcom/data/item.js b/chrome/content/zotero/xpcom/data/item.js
index 67fd8b7f03..e8bf7c232d 100644
--- a/chrome/content/zotero/xpcom/data/item.js
+++ b/chrome/content/zotero/xpcom/data/item.js
@@ -805,7 +805,7 @@ Zotero.Item.prototype.setField = function(field, value, loadIn) {
 		else if (fieldID == Zotero.ItemFields.getID('accessDate')) {
 			if (value && value != 'CURRENT_TIMESTAMP') {
 				// Accept ISO dates
-				if (Zotero.Date.isISODate(value)) {
+				if (Zotero.Date.isISODate(value) && !Zotero.Date.isSQLDate(value)) {
 					let d = Zotero.Date.isoToDate(value);
 					value = Zotero.Date.dateToSQL(d, true);
 				}
diff --git a/test/tests/itemTest.js b/test/tests/itemTest.js
index 9d3ee0d549..5b5b31ec24 100644
--- a/test/tests/itemTest.js
+++ b/test/tests/itemTest.js
@@ -207,6 +207,13 @@ describe("Zotero.Item", function () {
 			}
 		})
 		
+		it("should accept SQL accessDate without time", function* () {
+			var item = createUnsavedDataObject('item');
+			var date = "2017-04-05";
+			item.setField("accessDate", date);
+			assert.strictEqual(item.getField('accessDate'), date);
+		});
+		
 		it("should ignore unknown accessDate values", function* () {
 			var fields = {
 				accessDate: "foo"