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时间戳转换

2024-07-12 17:24:23   227人阅读

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

Javatime
JavaScriptMath.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
MySQLSELECT unix_timestamp(now())
Perltime
PHPtime()
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 +%s
VBScript / 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 timestamp
MySQLfrom_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]
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 YYYYMMDD
Perl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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