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"

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","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))"

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,$year);

PHP

mktime(hour,second,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,second)

SQL Server

SELECT DATEDIFF(s,time)

Unix / Linux

date +%s -d"Jan 1,1970 00:00:01"

VBScript / ASP

DateDiff("s",time)