c# DateTime 与UNIX时间戳转换
1311249000=2011-07-21 11:50:00：new DateTime(1970, 1, 1, 0, 0, 0, 0).AddSeconds(1311249000).ToString("yyyy-MM-dd HH:mm:ss")
from：http://code.aosoo.com/unixtime
如何在不同编程语言中获取现在的Unix时间戳(Unix timestamp)？
JavatimeJavaScriptMath.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) / 10000000MySQLSELECT unix_timestamp(now())PerltimePHPtime()PostgreSQLSELECT 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 ServerSELECT DATEDIFF(s,'1970-01-01 00:00:00',GETUTCDATE())Unix/Linuxdate+%sVBScript/ASPDateDiff("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？
JavaString 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()Linuxdate -d @Unix timestampMySQLfrom_unixtime(Unix timestamp)Perl先my $time = Unix timestamp然后my($sec,$min,$hour,$day,$month, $year) = (localtime($time))PHPdate('r', Unix timestamp)PostgreSQLSELECT TIMESTAMP WITH TIME ZONE 'epoch' + Unix timestamp) * INTERVAL '1 second';Python先 import time 然后 time.gmtime(Unix timestamp)RubyTime.at(Unix timestamp)SQL ServerDATEADD(s,Unix timestamp,'1970-01-01 00:00:00')VBScript/ASPDateAdd("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)？
Javalong epoch = new java.text.SimpleDateFormat("dd/MM/yyyy HH:mm:ss").parse("01/01/1970 01:00:00");JavaScriptvar commonTime = new Date(Date.UTC(year,month -1,day,hour,minute,second))MySQLSELECT unix_timestamp(time)
时间格式: YYYY-MM-DD HH:MM:SS 或 YYMMDD 或 YYYYMMDDPerl先 use Time::Local 然后my $time = timelocal($sec,$min,$hour,$day,$month,$year);PHPmktime(hour,minute,second,day,month,year)PostgreSQLSELECT 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')))RubyTime.local(year,month,day,hour,minute,second)SQL ServerSELECT DATEDIFF(s,'1970-01-01 00:00:00',time)Unix/Linuxdate +%s -d"Jan 1, 1970 00:00:01"VBScript/ASPDateDiff("s","01/01/1970 00:00:00",time)
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