時間

言語	DateTime取得	TimeStamp取得	DateTime変換 => TimeStamp	TimeStamp => DateTime変換
Mysql	NOW()	UNIX_TIMESTAMP()	UNIX_TIMESTAMP()	FROM_UNIXTIME()
C++	time_t型, struct tm構造体, strftime(datetime, N, "%Y-%m-%d %H:%M:%S",tm )	time_t型, time(NULL)	time_t型,struct tm構造体,strptime(datetime, "%Y-%m-%d %H:%M:%S", &tm ), mktime(&tm)	time_t型,struct tm構造体, localtime(), strftime(datetime, N, "%Y-%m-%d %H:%M:%S",tm );
Java	new Date(), new SimpleDateFormat("yyyy'-'MM'-'dd' 'HH':'mm':'ss"), sdf.format()	new Date(), date.getTime()	new Date(), new SimpleDateFormat("yyyy'-'MM'-'dd' 'HH':'mm':'ss"),sdf.parse(),date.getTime()	new Date(), new SimpleDateFormat("yyyy'-'MM'-'dd' 'HH':'mm':'ss"), sdf.format()
JavaScript	new Date(), getFullYear()等のメソッド	parseInt( new Date() / 1000 )	Date.parse( datetime.replace( /-/g, '/') ) / 1000	new Date(timestamp*1000), getFullYear()等のメソッド
Perl	strftime( "%Y-%m-%d %H:%M:%S" , localtime())	time	Time::Local,DateTime::Format::Strptime,Time::Pieceモジュールを使う	strftime( "%Y-%m-%d %H:%M:%S" , localtime($utime))
PHP	date("Y-m-d H:i:s") / strftime("%Y-%m-%d %H:%M:%S")	time()	strtotime( $datetime )	date( "Y-m-d H:i:s", $utime ) / strftime("%Y-%m-%d %H:%M:%S", $utime )
Python	datetime.now().strftime( '%Y-%m-%d %H:%M:%S' )	int(time())	int( time.mktime( datetime.strptime( dtime, "%Y-%m-%d %H:%M:%S" ).timetuple() ) )	datetime.fromtimestamp( utime )
Ruby	Time.now.strftime "%Y-%m-%d %H:%M:%S"	Time.now.to_i	Time.parse(datetime).to_i	Time.at(utime).strftime "%Y-%m-%d %H:%M:%S"