各种语言中的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)	令行状态：perl -e "print scalar(localtime(Unix timestamp))"

摘抄于：MySQL的FROM_UNIXTIME()和UNIX_TIMESTAMP()函数的区别