09-01-2007
Time issue with two different zones
Our city zone is Pacific standard time(PST). and our unix server time zone is GMT.
I am calling informatica job in unix script. Below is the steps in script.
1. Before starting the informatica job i get the datetime in startdate variable.
2. Calling the informatica configuration file which has the timezone as GMT.
3. Now the informatica job is called and upon the completion of Informatica job, I get the datetime in enddate variable.
This works fine in development environment. ie startdate and enddate variable values are in GMT timezone.
In Production the above unix script is called in Control M scheduler application which has the PST. The starttime variable is set to PST and enddate variable is set to GMT. so we were not able to get exact time difference. Is this due to the Control M scheduler timezone.
Control M and our login account are same. I checked in the production unix box time zone using TZ variable shows GMT timezone.
Pl help me to solve this issue.
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LEARN ABOUT OPENSOLARIS
rtc
rtc(1M) System Administration Commands rtc(1M)
NAME
rtc - provide all real-time clock and GMT-lag management
SYNOPSIS
/usr/sbin/rtc [-c] [-z zone-name]
DESCRIPTION
On x86 systems, the rtc command reconciles the difference in the way that time is established between UNIX and MS-DOS systems. UNIX systems
utilize Greenwich Mean Time (GMT), while MS-DOS systems utilize local time.
Without arguments, rtc displays the currently configured time zone string. The currently configured time zone string is based on what was
last recorded by rtc-z zone-name.
The rtc command is not normally run from a shell prompt; it is generally invoked by the system. Commands such as date(1) and rdate(1M),
which are used to set the time on a system, invoke /usr/sbin/rtc -c to ensure that daylight savings time (DST) is corrected for properly.
OPTIONS
-c This option checks for DST and makes corrections if necessary. It is normally run once a day by a cron job.
If there is no RTC time zone or /etc/rtc_config file, this option will do nothing.
-z zone-name This option, which is normally run by the system at software installation time, is used to specify the time zone in which
the RTC is to be maintained. It updates the configuration file /etc/rtc_config with the name of the specified zone and the
current GMT lag for that zone. If there is an existing rtc_config file, this command will update it. If not, this command
will create it.
FILES
/etc/rtc_config The data file used to record the time zone and GMT lag. This file is completely managed by /usr/sbin/rtc, and it is read
by the kernel.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Architecture |x86 |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
date(1), rdate(1M), attributes(5)
SunOS 5.11 3 Oct 2003 rtc(1M)