如何在不同编程语言中获取现在的Unix时间戳(Unix timestamp)

如何在不同编程语言中获取现在的Unix时间戳(Unix timestamp)？

Java time JavaScript Math.round(new Date().getTime()/1000)getTime()返回数值的单位是毫秒 Microsoft .NET / C# epoch = (DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000 MySQL SELECT unix_timestamp(now()) Perl time PHP time() PostgreSQL SELECT extract(epoch FROM now()) Python 先 import time 然后 time.time() Ruby 获取Unix时间戳：Time.now 或 Time.new 显示Unix时间戳：Time.now.to_i SQL Server SELECT DATEDIFF(s,'1970-01-01 00:00:00',GETUTCDATE()) Unix/Linux date+%s VBScript/ASP DateDiff("s","01/01/1970 00:00:00",Now()) 其他操作系统 (如果Perl被安装在系统中) 命令行状态：perl -e "print time"

如何在不同编程语言中实现Unix时间戳(Unix timestamp) → 普通时间？

Java String date = new java.text.SimpleDateFormat("dd/MM/yyyy HH:mm:ss").format(new java.util.Date(Unix timestamp * 1000)) JavaScript 先 var unixTimestamp = new Date(Unix timestamp*1000)然后commonTime = unixTimestamp.toLocaleString() Linux date -d @Unix timestamp MySQL from_unixtime(Unix timestamp) Perl 先my $time = Unix timestamp然后my($sec,$min,$hour,$day,$month, $year) = (localtime($time))[0,1,2,3,4,5,6] PHP date('r', Unix timestamp) PostgreSQL SELECT TIMESTAMP WITH TIME ZONE 'epoch' + Unix timestamp) * INTERVAL '1 second'; Python 先 import time 然后 time.gmtime(Unix timestamp) Ruby Time.at(Unix timestamp) SQL Server DATEADD(s,Unix timestamp,'1970-01-01 00:00:00') VBScript/ASP DateAdd("s",Unix timestamp,"01/01/1970 00:00:00") 其他操作系统 (如果Perl被安装在系统中) 命令行状态：perl -e "print scalar(localtime(Unix timestamp))"

如何在不同编程语言中实现普通时间 → Unix时间戳(Unix timestamp)？

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,day,month,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)