diff --git a/backend/mpc-system/services/session-coordinator/adapters/output/postgres/session_postgres_repo.go b/backend/mpc-system/services/session-coordinator/adapters/output/postgres/session_postgres_repo.go
index 2700d8d3..d8cb294d 100644
--- a/backend/mpc-system/services/session-coordinator/adapters/output/postgres/session_postgres_repo.go
+++ b/backend/mpc-system/services/session-coordinator/adapters/output/postgres/session_postgres_repo.go
@@ -207,13 +207,14 @@ func (r *SessionPostgresRepo) FindByStatus(ctx context.Context, status value_obj
 }
 
 // FindExpired retrieves all expired but not yet marked sessions
+// Note: expires_at is stored in UTC, so we compare with NOW() AT TIME ZONE 'UTC'
 func (r *SessionPostgresRepo) FindExpired(ctx context.Context) ([]*entities.MPCSession, error) {
 	rows, err := r.db.QueryContext(ctx, `
 		SELECT id, session_type, threshold_n, threshold_t, status,
 			   message_hash, public_key, delegate_party_id, keygen_session_id, created_by, created_at, updated_at, expires_at, completed_at, version,
 			   COALESCE(wallet_name, ''), COALESCE(invite_code, '')
 		FROM mpc_sessions
-		WHERE expires_at < NOW() AND status IN ('created', 'in_progress')
+		WHERE expires_at < (NOW() AT TIME ZONE 'UTC') AND status IN ('created', 'in_progress')
 	`)
 	if err != nil {
 		return nil, err