Fixed default value factory.

src/Squidex.Domain.Apps.Core.Operations/EnrichContent/DefaultValueFactory.cs

@@ -88,7 +88,7 @@ namespace Squidex.Domain.Apps.Core.EnrichContent
 
             if (field.Properties.CalculatedDefaultValue == DateTimeCalculatedDefaultValue.Today)
             {
-                return JsonValue.Create(now.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture));
+                return JsonValue.Create($"{now.ToString("yyyy-MM-dd", CultureInfo.InvariantCulture)}T00:00:00Z");
             }
 
             return JsonValue.Create(field.Properties.DefaultValue?.ToString());

tests/Squidex.Domain.Apps.Core.Tests/Operations/EnrichContent/ContentEnrichmentTests.cs

@@ -117,7 +117,7 @@ namespace Squidex.Domain.Apps.Core.Operations.EnrichContent
                 Fields.DateTime(1, "1", Partitioning.Invariant,
                     new DateTimeFieldProperties { CalculatedDefaultValue = DateTimeCalculatedDefaultValue.Today });
 
-            Assert.Equal(JsonValue.Create("2017-10-12"), DefaultValueFactory.CreateDefaultValue(field, now));
+            Assert.Equal(JsonValue.Create("2017-10-12T00:00:00Z"), DefaultValueFactory.CreateDefaultValue(field, now));
         }
 
         [Fact]