如何在不同编程语言中获取现在的Unix时间戳(Unix timestamp)？
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| Java |
time |
| JavaScript |
Math.round(new Date().getTime()/1000)getTime()返回数值的单位是毫秒
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| 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
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| 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” |
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如何在不同编程语言中实现Unix时间戳(Unix timestamp) → 普通时间？
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| 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
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| 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))” |
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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
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| 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) |
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