% date +%s (-u なくても同じ) 1416322079 % date --date "@1416322079" Tue Nov 18 15:47:59 CET 2014 % date -u -d "@1416322079" Tue Nov 18 14:47:59 UTC 2014 % date +%m 11 % date +%d 18 % date +%y 14 % date +%h Nov % date +%H 15 % date +%S 40 % date +%s 1416322663 date -u "2004-02-29 16:21:42" +%s % date +%s -d "2004-02-29 16:21:42" 1078068102 % date +%s -d "2014-11-18 14:47:59" 1416318479 % date +%s -u -d "2014-11-18 14:47:59" UTCで 1416322079 % date +%s -u -d "2014-11-18" 1416268800 % date +%s -u -d "2014-11-18 14" 1416319200 % date +%s -u -d "2014-11-18 14:47" 1416322020 % date +%s -u -d "2014-11-18 14:4*01" date: invalid date `2014-11-18 14:4*01' % date +%s -u -d "2014-11-18 14:4:01" 1416319441 %