-rw-r--r-- 1 jeffrin jeffrin 0 2012-02-19 22:30:38.000000000 +0530 a1.txt
-rw-r--r-- 1 jeffrin jeffrin 2 2012-02-19 22:31:00.000000000 +0530 a2.txt
Sat Feb 25 01:17:27 IST 2012
Sat, 25 Feb 2012 01:19:41 +0530
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computer science related Theory Drop
In computer science and computer programming, system time
represents a computer system's notion of the passing of time. In
this sense, time also includes the passing of days on the calendar.
System time is measured by a system clock, which is typically
implemented as a simple count of the number of ticks that have
transpired since some arbitrary starting date, called the epoch.
For example, Unix and POSIX-compliant systems encode system time
("Unix time") as the number of seconds elapsed since the start of
the Unix epoch at 1 January 1970 00:00:00 UT, with exceptions for
source : http://en.wikipedia.org/wiki/System_time