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Full Discussion: gawk and strftime()
Top Forums Shell Programming and Scripting gawk and strftime() Post 302192626 by jim mcnamara on Wednesday 7th of May 2008 01:04:03 PM
Old 05-07-2008
DST is not UTC. If you mean METDST. It is one hour fast - exactly what you see. Plus you realize those values are for Dec 31 1969 - Jan 1 1970.

Midnight UTC is 1:00am DST. 1:00am UTC is 2:00am DST. What you see is correct.
Most systems are supposed to support the TZ variable. Play around with that
Code:
export TZ=MET-1METDST
date
export TZ=MET0
date
export TZ=ZZZ-19
date

Your gawk code should follow suit nicely.
 

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settimeofday(2) 						System Calls Manual						   settimeofday(2)

NAME
settimeofday - set the date and time SYNOPSIS
DESCRIPTION
The function sets the current time, expressed as seconds and microseconds since Epoch, and passed as the structure pointed to by tp. The resolution of the system clock is one microsecond. Security Restrictions Setting the time of day requires the privilege (SYSATTR). Processes owned by the superuser will have this privilege. Processes owned by other users may have this privilege, depending on system configuration. See privileges(5) for more information about privileged access on systems that support fine-grained privileges. PARAMETERS
tp A pointer to a structure in which the current time is returned. The structure includes the following members: tzp If this parameter is not a null pointer, it is interpreted as a pointer to a structure under HP-UX. The structure has the following fields: tz_minuteswest The number of minutes that the local time zone is west of Coordinated Universal Time (UTC) or Epoch. tz_dsttime A flag that, if nonzero, indicates that Daylight Savings Time (DST) applies locally during the appropriate part of the year. RETURN VALUE
returns the following values under HP-UX: Successful completion. Failure. is set to indicate the error. ERRORS
If fails, is set to the following value under HP-UX: An argument address referenced invalid memory. The member of the tp parameter to was less than zero or greater than 2^31. A user lacking appropriate privileges attempted to set the time. WARNINGS
Relying on a granularity of one microsecond may result in code that is not portable to other platforms. AUTHOR
was developed by the University of California, Berkeley, and HP. SEE ALSO
date(1), ftime(2), gettimeofday(2), stime(2), time(2), ctime(3C), privileges(5). settimeofday(2)
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