Como converter o UNIX TIME em formato de data e hora SQL

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

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

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;