fix times not exists canot sync bug. fixed #101
fix times not exists canot sync bug. fixed #101

chinakids/cnpmjs.org,marvinlee/cnpmjs.org,marvinlee/cnpmjs.org,chinakids/cnpmjs.org,irachex/cnpmjs.org,alsotang/cnpmjs.org,yufi113/cnpmjs.org,marvinlee/cnpmjs.org,chinakids/cnpmjs.org,yufi113/cnpmjs.org,irachex/cnpmjs.org,limianwang/cnpmjs.org,irachex/cnpmjs.org,limianwang/cnpmjs.org,limianwang/cnpmjs.org,yufi113/cnpmjs.org,alsotang/cnpmjs.org