您可以使用如下功能：

select FROM_UNIXTIME(UNIX_TIMESTAMP(),'%a %b %d %H:%i:%s UTC %Y');

输出将为：

'Wed Feb 05 05:36:16 UTC 2014'

在你的查询

select COUNT(DISTINCT devices) AS "Devices",
  FROM_UNIXTIME(measure_tab.time,'%a %b %d %H:%i:%s UTC %Y') as d from measure_tab where 
  measure_tab.time >= 1375243200 and 
  measure_tab.time < 1375315200;

有关更多信息，您可以查看文档： http://dev.mysql.com/doc/refman/5.5/en/date- and-time-functions.html＃function_from-unixtime

For more info you can check documentation: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_from-unixtime

你可以看到sql fiddle： http://sqlfiddle.com/#!2/a2581/20357

You can see sql fiddle:http://sqlfiddle.com/#!2/a2581/20357