diff --git a/models/access.go b/models/access.go
index fe2350606a..447777ad5a 100644
--- a/models/access.go
+++ b/models/access.go
@@ -110,7 +110,7 @@ func (u *User) GetAccessibleRepositories() ([]*Repository, error) {
 		repoIDs = append(repoIDs, access.RepoID)
 	}
 	repos := make([]*Repository, 0, len(repoIDs))
-	return repos, x.Where("owner_id != ?", u.Id).In("id", repoIDs).Desc("updated").Find(&repos)
+	return repos, x.Where("owner_id != ?", u.Id).In("id", repoIDs).Desc("updated_unix").Find(&repos)
 }
 
 func maxAccessMode(modes ...AccessMode) AccessMode {
diff --git a/models/issue.go b/models/issue.go
index 9dcff15a3f..067f0a0ba0 100644
--- a/models/issue.go
+++ b/models/issue.go
@@ -495,11 +495,11 @@ func Issues(opts *IssuesOptions) ([]*Issue, error) {
 
 	switch opts.SortType {
 	case "oldest":
-		sess.Asc("created")
+		sess.Asc("created_unix")
 	case "recentupdate":
-		sess.Desc("updated")
+		sess.Desc("updated_unix")
 	case "leastupdate":
-		sess.Asc("updated")
+		sess.Asc("updated_unix")
 	case "mostcomment":
 		sess.Desc("num_comments")
 	case "leastcomment":
@@ -507,7 +507,7 @@ func Issues(opts *IssuesOptions) ([]*Issue, error) {
 	case "priority":
 		sess.Desc("priority")
 	default:
-		sess.Desc("created")
+		sess.Desc("created_unix")
 	}
 
 	labelIDs := base.StringsToInt64s(strings.Split(opts.Labels, ","))
diff --git a/models/issue_comment.go b/models/issue_comment.go
index f0cc6188a0..7c96a7d34e 100644
--- a/models/issue_comment.go
+++ b/models/issue_comment.go
@@ -310,7 +310,7 @@ func GetCommentByID(id int64) (*Comment, error) {
 // GetCommentsByIssueID returns all comments of issue by given ID.
 func GetCommentsByIssueID(issueID int64) ([]*Comment, error) {
 	comments := make([]*Comment, 0, 10)
-	return comments, x.Where("issue_id=?", issueID).Asc("created").Find(&comments)
+	return comments, x.Where("issue_id=?", issueID).Asc("created_unix").Find(&comments)
 }
 
 // UpdateComment updates information of comment.
diff --git a/models/release.go b/models/release.go
index b52b63941a..2379bdc628 100644
--- a/models/release.go
+++ b/models/release.go
@@ -131,7 +131,7 @@ func GetReleaseByID(id int64) (*Release, error) {
 
 // GetReleasesByRepoID returns a list of releases of repository.
 func GetReleasesByRepoID(repoID int64) (rels []*Release, err error) {
-	err = x.Desc("created").Find(&rels, Release{RepoID: repoID})
+	err = x.Desc("created_unix").Find(&rels, Release{RepoID: repoID})
 	return rels, err
 }
 
diff --git a/models/repo.go b/models/repo.go
index b5567bf683..4ee99dab7c 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -1464,7 +1464,8 @@ func GetRepositoryByID(id int64) (*Repository, error) {
 // GetRepositories returns a list of repositories of given user.
 func GetRepositories(uid int64, private bool) ([]*Repository, error) {
 	repos := make([]*Repository, 0, 10)
-	sess := x.Desc("updated")
+	sess := x.Desc("updated_unix")
+
 	if !private {
 		sess.Where("is_private=?", false)
 	}
@@ -1475,7 +1476,7 @@ func GetRepositories(uid int64, private bool) ([]*Repository, error) {
 // GetRecentUpdatedRepositories returns the list of repositories that are recently updated.
 func GetRecentUpdatedRepositories(page int) (repos []*Repository, err error) {
 	return repos, x.Limit(setting.ExplorePagingNum, (page-1)*setting.ExplorePagingNum).
-		Where("is_private=?", false).Limit(setting.ExplorePagingNum).Desc("updated").Find(&repos)
+		Where("is_private=?", false).Limit(setting.ExplorePagingNum).Desc("updated_unix").Find(&repos)
 }
 
 func getRepositoryCount(e Engine, u *User) (int64, error) {
diff --git a/routers/repo/repo.go b/routers/repo/repo.go
index d4af0babc0..eb944acebc 100644
--- a/routers/repo/repo.go
+++ b/routers/repo/repo.go
@@ -34,7 +34,7 @@ func MustBeNotBare(ctx *middleware.Context) {
 }
 
 func checkContextUser(ctx *middleware.Context, uid int64) *models.User {
-	orgs, err := models.GetOwnedOrgsByUserIDDesc(ctx.User.Id, "updated")
+	orgs, err := models.GetOwnedOrgsByUserIDDesc(ctx.User.Id, "updated_unix")
 	if err != nil {
 		ctx.Handle(500, "GetOwnedOrgsByUserIDDesc", err)
 		return nil