9 More Discussions You Might Find Interesting
1. AIX
Hello,
I like to set the CDT timezone, but it shows CST still even after I activated the DayLight Time
cat /etc/environment | grep TZ
TZ=CST6CDT
Now looking at date:
root@test8:/>date
Tue Dec 20 05:34:45 CST 2016
How can I make it from CST to CDT ?
thanks (5 Replies)
Discussion started by: filosophizer
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2. UNIX for Advanced & Expert Users
We have an ancient Unix box from Siemens. Every year the system automatically changes the time for EST or DST. Unfortunately since the box is so old the dates that the times change are the old dates and not the current ones set during (I think) the Bush years.
When I have to set the time back... (3 Replies)
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3. AIX
Our aix unix box did not recognize daylight savings time since it was moved up. Could someone please give me the syntax to change the hour? I looked in man and couldn't find anything, or I missed it. I'm in 3rd grade so if you can, please provide specific instructions.
Thanks! (2 Replies)
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4. Solaris
I am running a SUN E450 on solaris (5.7). I have applied the DST patch and the system time is correct. However when users login the get the time wrong (+4 hours) (I am in EDT Zone). Does anyone know where a system wide variable for this could be set. (Root user gets the right time)
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5. Solaris
Hello,
I've been looking at coming up with a time change on my Sun workstations since daylight savings time comes early this year. Someone at work told me that a sun patch is available if you have a maintenance contract. It was recommended to just set your systems to GMT time zone. How is this... (5 Replies)
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Hey guys,
How do i check and see if my server will automatically adjust itself for daylight savings?
Thanks! (6 Replies)
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7. Solaris
I have a solaris 8 server - and I need to ensure the daylight savings change properly but I dont think its set up correctly:
/usr/sbin/zdump -v -c 2005 $TZ
GB-EIRE Wed Oct 26 12:20:02 2005 UTC = Wed Oct 26 12:20:02 2005 GB isdst=0
GB-EIRE Fri Dec 13 20:45:52 1901 UTC = Fri Dec 13 20:45:52... (5 Replies)
Discussion started by: frustrated1
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8. UNIX for Dummies Questions & Answers
I was trying to schedule a job to run on the last Sunday of October. To stop a process that I have running before daylight savings automatically falls back at 2AM then restart it after the hour has been regained. I thought I was smart (my mistake) and scheduled the 2 entries in cron. I figured that... (3 Replies)
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9. Post Here to Contact Site Administrators and Moderators
Hey Neo - or other Unix.com staffers - I've selected my Timezone for the forums - however it's wrong for my Country - as we have Daylight Savings for 6 months of the year - so currently were 1 hour ahead of the time that is provided in the personal options pages. Can we add another for this - no... (5 Replies)
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LEARN ABOUT DEBIAN
parsedate
PARSEDATE(3) Library Functions Manual PARSEDATE(3)
NAME
parsedate - convert time and date string to number
SYNOPSIS
#include <sys/types.h>
typedef struct _TIMEINFO {
time_t time;
long usec;
long tzone;
} TIMEINFO;
time_t
parsedate(text, now)
char *text;
TIMEINFO *now;
DESCRIPTION
Parsedate converts many common time specifications into the number of seconds since the epoch -- i.e., a time_t; see time(2).
Parsedate returns the time, or -1 on error. Text is a character string containing the time and date. Now is a pointer to the time that
should be used for calculating relative dates. If now is NULL, then GetTimeInfo in libinn(3) is used to obtain the current time and time-
zone.
The character string consists of zero or more specifications of the following form:
time A time of day, which is of the form hh[:mm[:ss]] [meridian] [zone] or hhmm [meridian] [zone]. If no meridian is specified, hh is
interpreted on a 24-hour clock.
date A specific month and day with optional year. The acceptable formats are mm/dd[/yy], yyyy/mm/dd, monthname dd[, yy], dd monthname
[yy], and day, dd monthname yy. The default year is the current year. If the year is less then 100, then 1900 is added to it; if
it is less then 21, then 2000 is added to it.
relative time
A specification relative to the current time. The format is number unit; acceptable units are year, month, week, day, hour, minute
(or min), and second (or sec). The unit can be specified as a singular or plural, as in 3 weeks.
The actual date is calculated according to the following steps. First, any absolute date and/or time is processed and converted. Using
that time as the base, day-of-week specifications are added. Next, relative specifications are used. If a date or day is specified, and
no absolute or relative time is given, midnight is used. Finally, a correction is applied so that the correct hour of the day is produced
after allowing for daylight savings time differences.
Parsedate ignores case when parsing all words; unknown words are taken to be unknown timezones, which are treated as GMT. The names of the
months and days of the week can be abbreviated to their first three letters, with optional trailing period. Periods are ignored in any
timezone or meridian values.
BUGS
Parsedate does not accept all desirable and unambiguous constructions. Semantically incorrect dates such as ``February 31'' are accepted.
Daylight savings time is always taken as a one-hour change which is wrong for some places. The daylight savings time correction can get
confused if parsing a time within an hour of when the reckoning changes, or if given a partial date.
HISTORY
Originally written by Steven M. Bellovin <smb@research.att.com> while at the University of North Carolina at Chapel Hill and distributed
under the name getdate.
A major overhaul was done by Rich $alz <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990.
It was further revised (primarily to remove obsolete constructs and timezone names) a year later by Rich (now <rsalz@osf.org>) for Inter-
NetNews, and the name was changed. This is revision 1.10, dated 1993/01/29.
SEE ALSO
date(1), ctime(3), libinn(3), time(2).
PARSEDATE(3)