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new SimpleDateFormat("yyyy/MM/dd").format(new Date(timestamp*1000));
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new java.text.SimpleDateFormat (”dd/MM/yyyy HH:mm:ss”).parse(”09/22/2008 16:33:00″).getTime()
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new Date(unixtime)  ÓÉunixtimeµ½Date
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String timezone_info = System.getProperty(”user.timezone”);
System.out.println(”µ±Ç°µÄÊ±Çø:”+timezone_info);
System.out.println(”Ê±ÇøÐÅÏ¢:”+TimeZone.getDefault());
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SimpleDateFormat sd = new SimpleDateFormat(”yyyy-MM-dd HH:mm:ss”);
sd.setTimeZone(TimeZone.getTimeZone(”GMT+8″));
String strDate = sd.format(new Date(1215782027390L));
System.out.println(”Õý°ËÇøµ±Ç°Ê±¼ä:”+strDate);
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mktime()
date("format", unixtime)
time()
date('Y')
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UNIX_TIMESTAMP(date)
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DATE_FORMAT(date,format)
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