09-14-2010
convert the time stamp to unix seconds, subtract 600 and reconvert it
from the wiki page of date:
Quote:
To show the time in seconds since 1970-01-01 (Unix epoch):
date +"%s" -d "Fri Apr 24 13:14:39 CDT 2009"
1240596879
To convert Unix epoch time (seconds since 1970-01-01) to a human readable format:
date -d "UTC 1970-01-01 1240596879 secs"
Fri Apr 24 13:14:39 CDT 2009
Or:
date -ud @1000000000
Sun Sep 9 01:46:40 UTC 2001
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LEARN ABOUT OPENSOLARIS
tcl_gettime
Tcl_GetTime(3TCL) Tcl Library Procedures Tcl_GetTime(3TCL)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_GetTime - get date and time
SYNOPSIS
#include <tcl.h>
Tcl_GetTime( timePtr )
ARGUMENTS
Tcl_Time * timePtr (out) Points to memory in which to store the date and time information.
_________________________________________________________________
DESCRIPTION
The Tcl_GetTime function retrieves the current time as a Tcl_Time structure in memory the caller provides. This structure has the follow-
ing definition:
typedef struct Tcl_Time {
long sec;
long usec;
} Tcl_Time;
On return, the sec member of the structure is filled in with the number of seconds that have elapsed since the epoch: the epoch is the
point in time of 00:00 UTC, 1 January 1970. This number does not count leap seconds - an interval of one day advances it by 86400 seconds
regardless of whether a leap second has been inserted.
The usec member of the structure is filled in with the number of microseconds that have elapsed since the start of the second designated by
sec. The Tcl library makes every effort to keep this number as precise as possible, subject to the limitations of the computer system. On
multiprocessor variants of Windows, this number may be limited to the 10- or 20-ms granularity of the system clock. (On single-processor
Windows systems, the usec field is derived from a performance counter and is highly precise.)
SEE ALSO
clock
KEYWORDS
date, time
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 8.4 Tcl_GetTime(3TCL)