互联网时间校准
某东
https://content-msg-center.jd.com/client
某团
https://cube.meituan.com/ipromotion/cube/toc/component/base/getServerCurrentTime
某讯
http://vv.video.qq.com/checktime?otype=json
某宝
https://acs.m.taobao.com/gw/mtop.common.getTimestamp
某宁
https://f.m.suning.com/api/ct.do