diff --git a/src/manage_sql.c b/src/manage_sql.c
index b41e5c6..a36acdf 100644
--- a/src/manage_sql.c
+++ b/src/manage_sql.c
@@ -26579,7 +26579,7 @@ host_summary_append (GString *host_summary_buffer, const char *host,
           struct tm start_tm;
 
           memset (&start_tm, 0, sizeof (struct tm));
-          if (strptime (start_iso, "%FT%H:%M:%S", &start_tm) == NULL)
+          if (strptime (start_iso, "%Y-%m-%dT%H:%M:%S", &start_tm) == NULL)
             {
               g_warning ("%s: Failed to parse start", __func__);
               return;
@@ -26599,7 +26599,7 @@ host_summary_append (GString *host_summary_buffer, const char *host,
           struct tm end_tm;
 
           memset (&end_tm, 0, sizeof (struct tm));
-          if (strptime (end_iso, "%FT%H:%M:%S", &end_tm) == NULL)
+          if (strptime (end_iso, "%Y-%m-%dT%H:%M:%S", &end_tm) == NULL)
             {
               g_warning ("%s: Failed to parse end", __func__);
               return;