diff --git a/libgnucash/backend/dbi/gnc-backend-dbi.cpp b/libgnucash/backend/dbi/gnc-backend-dbi.cpp
index bd50be6c11..68b893379a 100644
--- a/libgnucash/backend/dbi/gnc-backend-dbi.cpp
+++ b/libgnucash/backend/dbi/gnc-backend-dbi.cpp
@@ -59,7 +59,7 @@ extern "C"
 #include "gnc-engine.h"
 #include "SX-book.h"
 #include "Recurrence.h"
-
+#include <gnc-features.h>
 #include "gnc-uri-utils.h"
 #include "gnc-filepath-utils.h"
 #include <gnc-path.h>
@@ -76,6 +76,7 @@ extern "C"
 #include <string>
 #include <iomanip>
 
+#include <qofsession.hpp>
 #include <gnc-backend-prov.hpp>
 #include "gnc-backend-dbi.h"
 #include "gnc-backend-dbi.hpp"
@@ -470,7 +471,6 @@ GncDbiBackend<DbType::DBI_SQLITE>::session_begin(QofSession* session,
      * Let's start logging */
     xaccLogSetBaseName (filepath.c_str());
     PINFO ("logpath=%s", filepath.c_str() ? filepath.c_str() : "(null)");
-
     LEAVE ("");
 }
 
@@ -830,6 +830,9 @@ GncDbiBackend<Type>::load (QofBook* book, QofBackendLoadType loadType)
 
     GncSqlBackend::load(book, loadType);
 
+    if (Type == DbType::DBI_SQLITE)
+        gnc_features_set_used(book, GNC_FEATURE_SQLITE3_ISO_DATES);
+
     if (GNUCASH_RESAVE_VERSION > get_table_version("Gnucash"))
     {
         /* The database was loaded with an older database schema or
diff --git a/libgnucash/engine/gnc-features.c b/libgnucash/engine/gnc-features.c
index 4d38fa7b1c..ca4cb9bad8 100644
--- a/libgnucash/engine/gnc-features.c
+++ b/libgnucash/engine/gnc-features.c
@@ -47,6 +47,7 @@ static gncFeature known_features[] =
     { GNC_FEATURE_BOOK_CURRENCY, "User specifies a 'book-currency'; costs of other currencies/commodities tracked in terms of book-currency (requires at least GnuCash 2.7.0)" },
     { GNC_FEATURE_GUID_BAYESIAN, "Use account GUID as key for Bayesian data (requires at least GnuCash 2.6.12)" },
     { GNC_FEATURE_GUID_FLAT_BAYESIAN, "Use account GUID as key for bayesian data and store KVP flat (requires at least Gnucash 2.6.19)" },
+    { GNC_FEATURE_SQLITE3_ISO_DATES, "Use ISO formatted date-time strings in SQLite3 databases (requires at least GnuCash 2.6.20)"},
     { NULL },
 };
 
diff --git a/libgnucash/engine/gnc-features.h b/libgnucash/engine/gnc-features.h
index 2beca420ed..0386077a38 100644
--- a/libgnucash/engine/gnc-features.h
+++ b/libgnucash/engine/gnc-features.h
@@ -51,6 +51,7 @@ extern "C" {
 #define GNC_FEATURE_BOOK_CURRENCY "Use a Book-Currency"
 #define GNC_FEATURE_GUID_BAYESIAN "Account GUID based Bayesian data"
 #define GNC_FEATURE_GUID_FLAT_BAYESIAN "Account GUID based bayesian with flat KVP"
+#define GNC_FEATURE_SQLITE3_ISO_DATES "ISO-8601 formatted date strings in SQLite3 databases."
 
 /** @} */