How can I obtain the current UNIX timestamp (UNIX timestamp) in different programming languages )?

Java	Time
Javascript	Math. Round (new date (). gettime ()/1000) The unit of the value returned by gettime () is millisecond.
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	Import time first and then time. Time ()
Ruby	Obtain UNIX timestamp: time. Now or time. New Display UNIX timestamp: time. Now. to_ I
SQL Server	Select datediff (S, '2017-01-01 00:00:00 ', getutcdate ())
Unix/Linux	Date + % s
VBScript/asp	Datediff ("S", "01/01/1970 00:00:00", now ())
Other operating systems (If Perl is installed in the System)	Command Line status: Perl-e "Print time"

Although it is a small function, it is quite useful. You can calculate it yourself, especially for. net.