| Java | 
                            long epoch = new java.text.SimpleDateFormat("dd/MM/yyyy HH:mm:ss").parse("01/01/1970 01:00:00"); | 
                        
                        
                            | JavaScript | 
                            var commonTime = new Date(Date.UTC(year, month - 1, day, hour, minute, second)) | 
                        
                        
                            | MySQL | 
                            
                                SELECT unix_timestamp(time) 
                                时间格式: YYYY-MM-DD HH:MM:SS 或 YYMMDD 或 YYYYMMDD
                             | 
                        
                        
                            | Perl | 
                            先 use Time::Local 然后 my $time = timelocal($sec, $min, $hour, $day, $month, $year); | 
                        
                        
                            | PHP | 
                            mktime(hour, minute, second, month, day, year) | 
                        
                        
                            | PostgreSQL | 
                            SELECT extract(epoch FROM date('YYYY-MM-DD HH:MM:SS')); | 
                        
                        
                            | Python | 
                            先 import time 然后 int(time.mktime(time.strptime('YYYY-MM-DD HH:MM:SS', '%Y-%m-%d %H:%M:%S'))) | 
                        
                        
                            | Ruby | 
                            Time.local(year, month, day, hour, minute, second) | 
                        
                        
                            | SQL Server | 
                            SELECT DATEDIFF(s, '1970-01-01 00:00:00', time) | 
                        
                        
                            | Unix / Linux | 
                            date +%s -d"Jan 1, 1970 00:00:01" | 
                        
                        
                            | VBScript / ASP | 
                            DateDiff("s", "01/01/1970 00:00:00", time) |