Adds possibility to use UTC time

Author: Cussa

README.md

@@ -131,6 +131,15 @@ public SchoolContext()
 }
 ```
 
+### If you don't want to use UTC for log time
+As the library can be used in several places with different timezones, the default configuration is to use Utc. However, if your application is only used in one timezone, you can configure the library to use the time in the current timezone.
+```cs
+public SchoolContext()
+{
+    UseUtcTime = false;
+}
+```
+
 ## Examples
 The source code contains two examples: one for .Net 4.5 and another for .Net Core 2.2. Both of them are the official tutorials projects from Microsoft. For more information about them, please, take a look at the links below:
 - .Net 4.5: https://docs.microsoft.com/en-us/aspnet/mvc/overview/getting-started/getting-started-with-ef-using-mvc/creating-an-entity-framework-data-model-for-an-asp-net-mvc-application

src/HodStudio.EntityFrameworkDiffLog/Repository/LoggingContext.cs

@@ -53,7 +53,7 @@ internal static async Task LogChangesAsync(this LoggingDbContext context, string
 
         private static async Task LogChangesAsync(this LoggingDbContext context, string userId, bool asyncOperation)
         {
-            var logTime = DateTime.Now;
+            var logTime = context.UseUtcTime ? DateTime.UtcNow : DateTime.Now;
             var changes = context.ChangeTracker.Entries()
                             .Where(x => entityStates.Contains(x.State)
                                 && GetEntityType(x.Entity.GetType()) != null)
@@ -81,7 +81,7 @@ internal static async Task LogChangesAddedEntitiesAsync(this LoggingDbContext co
 
         private static async Task LogChangesAddedEntitiesAsync(this LoggingDbContext context, string userId, bool asyncOperation)
         {
-            var logTime = DateTime.Now;
+            var logTime = context.UseUtcTime ? DateTime.UtcNow : DateTime.Now;
             var jdp = new JsonDiffPatch();
 
             foreach (var item in context.AddedEntities)

src/HodStudio.EntityFrameworkDiffLog/Repository/LoggingDbContext.cs

@@ -17,6 +17,7 @@ public partial class LoggingDbContext
         protected string LogEntriesSchemaName { get; set; } = "dbo";
 
         public bool IdGeneratedByDatabase { get; set; } = true;
+        public bool UseUtcTime { get; set; } = true;
 
         public DbSet<LogEntry> LogEntries { get; set; }