# 安装ntpdate
rpm -ivh http://mirrors.wlnmp.com/centos/wlnmp-release-centos.noarch.rpm
yum install ntpdate -y

# 更改时区
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

# 设置定时任务同步时间
echo 'Asia/Shanghai' > /etc/timezone
ntpdate time2.aliyun.com

# 加入到crontab
crontab -e
*/5 * * * * /usr/sbin/ntpdate time1.aliyun.com >> /tmp/time.log 2>&1