Time change - SAP Impact

Hi,
I have 2 jobs that run everyday at 1:30 am and 2:00 am. Since next 30th of October the clock will move 1 hour backwards at 2am, do you know if these jobs will be affected? Can somebody tell me how SAP behaves in these situations?
Best regards,
Nuno Barros

Yes, how is the Canadian national debt doing?
So if it's 2 am...I think it goes like this, that 01:59:59 plus one second is not 02:00:00, but 01:00:00 again. So the 2 am job will run 90 minutes after the 1.30 am job...if the server clock adjust automatically as well...or what?
@Nuno: Is it so important anyway? As long as both jobs run during the night?
Thomas

Similar Messages

The impact of changing SAP system time zone.

Hello gurus,
We are in the company located in UTC+8 Time Zone. but during the system installation, the setting in SAP (tcode:STZAC) of the system time zone is CET, which is, not correct, and cause some issues: such as, when we try to send mail via SAP smtp, the sent time in the mail is always wrong.
We tried to modify it to UTC+8, but since we already go live for several months, there're lots of application data in the system. Before that we need to make sure that this change will not affect the current implementation.
Do you experts know the impact or risk of changing the system time zone after going live?
Regards,
Charlie

Lets look at this from a logic perspective, if your system is CET and you are moving to UTC+8 you are going a few hours ahead... so basically you'll find a gap in time in between the documents but you wont find any time conflict. So based on that it should be safe. You certainly need to check your jobs and make sure all necesary jobs will run so you can reschedule them if skipped by the time change (I guess).
Regards
Juan

Change of system time in SAP

Hi
We wanted to change the system time in SAP and we have already posted certain documents.
Pls let me know, if we change the time.
Will there be any impact on the posted documents
Regards
Madhan D

Hi,
Changing system time would ideally can have impact on transactional documents created.
You need to ensure that there are no post dated open documents as it may clash with change in time.
Eventuall changing the time post 12 mid night would be a good option.
Hope this helps.
Regards,
Deepak Kori

Time changes at OS (HP-UX) level, and reflect to SAP

Dear gurus,
It is found that some of our SAP systems are showing time as 1 day ahead, It is because at OS level (HP-UX) time is 1 day ahead.
My question here is, Is it sufficient for us to change OS timings? will SAP automatically reflect the time changes/ or do i need to restart SAP systems?
Thanks and Regards

Dear gurus,
The date and time change on the running system will reflect on your business transaction and data extracation schedules, both should be address after set date and time. The date and time will reflect on system after restarting the instances.
The application transactions use the ABAP processor clock, which uses the Database administration system on the database server
The system log uses the operating system clock on its own computer (as do all kernel levels below the ABAP processor).
Regards
Anwer Waseem

Time change impact?

I recently noticed that my images needed to have 9 hours added to the capture time in order to have the correct time in the metadata. I added 9 hours to the capture time via Lightrooms option. However, after noticing that some of the buildings with clocks were still 1 hour ahead of the metadata capture time I made a note to add an additional hour to the capture time so everything would be in sync. Today, the first day of the change back to standard time, I looked at the clock images and the capture time in the metadata and noticed the images are now 2 hours behind the actual time shown on the clocks. Did the change to standard time, which is automatic on my computer somehow impact the capture time in my metadata also?
Don

LR does some funky things about time, and for some reason the time shown is impacted by the current computer time.
They're well aware of all the date/time issues, we're just going to have to wait for them to get fixed in a future version.

Multiple instances spawned after daylight savings time change

This is a known issue and there is an SAP Knowledge Base Article created on this issue:
1448881 - Multiple instances spawned after daylight savings time change
Below is the information from the SAP Knowledge Base Article:
Symptom
Scheduled reports that are supposed to run once a day, run multiple times.
Duplicate instances are being created.
Environment
BusinessObjects Enterprise XIR2 SP5
BusinessObjects Enterprise XIR2 SP5 + FP5.x
Reproducing the Issue
A report is scheduled to be run on a daily basis - this is a Recurring schedule.
Normally the report runs once a day, at a particular time.
After Daylight Savings Time change, the report runs at the specified time, but immediately after the successful instance, another instance is spawned.
Many more instances spawn after each instance completes.
Cause
This is a known issue: ADAPT01318487. This issue is because of DST and how our code handles this change.
Resolution
There is currently no known fix for this issue. There is however a script that can quickly resolve the problem.
The issue it seems is related to Daily recurring schedules.
What this script will do:
it will run a query to display all your DAILY Recurring jobs
you will have the option to choose your jobs and reschedule them by 1 hour
you will then highlight the same job and change them back by 1 hour
by modifying the schedule times, you are modifying the schedule itself and this will keep the issue of duplicate instances from occurring.
Exact Steps to Complete:
Stop the Job Servers.
Double click on the .hta file.
Change the System Name to that of your CMS name.
Add the Administrator's password.
Click Logon.
Click List All Recurring Instances.
Select All.
Make note of what it says in: Schedule Selected Recurring Instances: Should be 1 hr earlier.
Click Reschedule Selected Recurring Instances.
Choose All instances again and change Schedule Selected Recurring Instances to 1 hour Later.
Click Reschedule Selected Recurring Instances.
Now start your Job Servers.
The issue should not occur again.
The Script is attached here, but please review the SAP Knowledge Base article 1448881 as well

Hi Nicola,
- The multiple spawned instances issue ONLY affects XI3 SP3+ only. For XI3 SP1 and SP2 all Fix Pack levels this is not an issue as it was introduced as a problem in SP3.
- 1568239 notes the Java version and can apply to all O/S environments and is updated to reflect that.
If you are located in Europe you can also apply the patches in advance of the DST change to avoid the problem. If you are in Americas at this point utilizing the clean up scripts for this year is the approach needed to clean up the spawned instances and reschedule the existing schedules.
Thanks,
Chris

Context Changes got impact on what?

Context Changes got impact on what?.

Hi Ash,
Context changes have impact on:
&#56256;&#56452; User-Defined Functions
&#56256;&#56452; Breaking and inserting of hierarchy levels
For more see below PPT of SAP:
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/be05e290-0201-0010-e997-b6e55f9548dd">https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/be05e290-0201-0010-e997-b6e55f9548dd</a>
Regards,
Subhasha Ranjan

Daylight Saving Time Changes in 2007 for USA

Can anyone give me solution how to handle Daylight saving Time changes in 2007 in USA for JDK 1.3.x releases? We are using this due to some vendor dependency. We can�t upgrade to higher versions up to middle of the 2007. I would be thankful if somebody gets back to me.

I have a similar issue where we cannot upgrade the jdk 1.1 without involving a lot of effort. If we keep the same old jdk, can someone tell me if use of Date and Calendar api will be impacted by the Daylight saving change.....provided the timezone is default and not explicitly set to EST. Also there isnt any timezone related buss logic.

TIME IN SAP

Hi all,
I would be thankful if someone helps me out regarding this issue.
Iam testing the SAP messages in the tc sxmb_moni. I need to caluculate the proper time difference between the messages where i found that the time on my desktop and the message executing times are different. Can anyone suggest me how to change the time in SAP.Is it possible in XI??
Regards ,
Kumar.

Hi Kumar
The time will be different because it depends on the time zone you have set in your XI box. Say if you are in India then the desktop time might have been set as per IST. Now log onto to your XI box, in the Menu go to System --> Status and check the Time Zone there. If it is the same as per your desktop, both will be same else it will be different. If you want to change it i guess you will have to get your BASIS folks to do it.
cheers
Sameer

DST time change for global companies

We are curious to hear how other companies are handling the DST time changes in spring and fall especially if they are global and operating in multiple time zones.
Do you set servers to UTC/GMT?
And set SAP systems to UTC?
And let users set their local time zone?
Would that mean we don't have to worry about the fall and spring time change any more because UTC doesn't change? (That would be nice!)
TIA,
Margie

Hi Volker,
these "right setting" makes me unconfident.
note 7417 tells me that that better shut down the system because the majority of the applications are not certified for a continued operation
note 102088 tells me how to minimize the downtime to one hour... these is the procedure we were using the last years
note 950114 tells me how to avoid the double hour by using zdate/DSTswitch_contloctime (=on you need not to shut down the system)
note 391658 tells me "If you are converting from summer time to winter time, shut down all SAP instances before the scheduled conversion (for example, at 01:30) and wait at least an hour before you restart them."
Your experience to let the systems run was quite good, but it is dissapoints me that SAP does not give a distinct statement about the DST. As mentioned befor, it is not practicable to shut down the SAP system in a global environment.
cu, Christian

USA Residents: Early Daylight Saving Time *Changes*.

Apparently, a few folks are unaware of the changes & patch because for various reasons they do not check and/or use their Software Update Control Panel.
http://docs.info.apple.com/article.html?artnum=305056 About Daylight Saving Time changes in 2007

I have a similar issue where we cannot upgrade the jdk 1.1 without involving a lot of effort. If we keep the same old jdk, can someone tell me if use of Date and Calendar api will be impacted by the Daylight saving change.....provided the timezone is default and not explicitly set to EST. Also there isnt any timezone related buss logic.

BW object status "Changed by IMPACT" - how to figure out who caused it?

Hi,
We have struggled with this for some time - and it has just bitten us again in our BW production system - an Update Rule became inactive with status changed by 'IMPACT.' We need help/instructions on how to see just what process (transport?) caused the impact!
Please share your knowledge/process for this issue.
thanks very much.
Janet H.

Hi,
Thanks to everyone who has responded. I suppose that I could have/should have provided more information in my original post/question. In our situation, there are no "obvious" structural changes that would have caused the update rules to be inactivated. There were no transports, no "manual" changes in an "open" system. There were no InfoObjects added nor removed from the ODS. (The update rules in question feed ODS targets.)
So, I have a couple of related questions -
Is it possible that this condition (changed by IMPACT) was caused by changes in the feeding (R/3) system? Perhaps by the Data Source being replicated? We did a Plug-in upgrade on our R/3 system on 20Nov2004. These update rules continued to function - they became inactive the first time a developer "looked" at them in the production BW system. Only a subset of all the update rules behaved this way. We have not been able to determine the commonality - reference characteristics, compound characteristics, etc. That is why we have posted this question. Any further advice is surely welcomed!
Janet H.

I think I solved my time changing issues- hope this helps

Hey everyone, I think I've had some success with my time changing issues. I originally posted this to another user as a follow up to her question, but I'm reposting it here. Hope it helps:
"msteinny,
So i went to the apple store to meet with an apple genius to ask him why my phone's time kept moving up 1 hour everytime I synced my phone. Well he said that he's never seen this problem before, and after a trying a reset and restore he let me exchange my phone. The problem is that when I went to sync my new phone the problem still persisted. They told me it was probably something to do with my computer and its time zone settings.
So I get home and click on my computers clock in the bottom right hand corner to bring up the date and time properties and sure enought my time is correct, the date is correct and the time zone is correct (Eastern Daylight Time). So I look through the different tabs (Date & Time, Time Zone, Internet Time). The first thing I tried to do was to change where my computer syncs its internet time. It was originaly set on NIST time. I then switched it to Windows time, but this didn't do anything. My clock would still change when I synced to itunes. The next thing I tried was fideling around in the Time Zone tabs. I noticed that the box that says "Automatically adjust clock for daylight savings" was unchecked, so I checked it and my computer's time jumped an hour ahead. So I left the box checked but moved my clock one hour back (to the correct time), clicked on apply and left it at that. I synced my iPhone and voila! The time didn't change! It stayed on the correct time! To to make a long story short, make sure that you computer's clock is set on "automatically adjust clock for daylight savings changes, make sure your time zone is correct, and that the time is right when that box is checked. I hope this helps you. I'm glad I got a new phone out of the deal;)
Chris P. "

As I mentioned in my post, whenever I checked that box the time would be incorrect. It would move up an hour. I've messed with this along time ago, way before I got my iphone. I think this had something to do with the daylight savings change that was implemented this year or last year. I dont remember if I never tried correcting it before, or if I couldn't, but this time I didn't have any problems correcting it. Anyway, since I couldn't correct it back then, I just left the box uncheck and decided that I would change the time manually when the next time change occurs. But it seems to work fine now so all is well.

IdM Scheduler and Time Change to Daylight Savings Time GMT to BST

This isn't really a 'question' , but just a topic for discussion.
We're not live yet, but will be by the time the clocks go back. So I'm just interest to hear everyone's experiences and any issues with regards to the switching to / from DST
I did some "interesting" (or not) tests last night to see what happens with Pending Values which are due to take effect at the time change threshold of 01:00 GMT when switching to Daylight Savings Time (BST) GMT +0100.
It seems as if the IdM scheduler keeps going according to UTC or GMT. However any values provisioned to target systems or to local tables using the ddm.datetime8601 system variable are in local time according to the runtime server or SQL server's locale settings.
I set up a task to output from a javascript the current system date
using the following in the functions.
currentTime = new Date();
return currentTime.toString(); // returns Locale Time String
currentTime = new Date();
return currentTime.toUTCString(); // returns UTC Time String
in the same pass I also output the ddm.datetime8601 system parameter and the ddm.time24 system parameter.
This task was to update a comment on an entry and Scheduled to run at 00:00:00 and was executed at 00:00:06 GMT all times were still in GMT as expected.
Local Time: Sun Mar 27 00:00:06 GMT-0000 (GMT) 2011, UTC Time: Sun, 27 Mar 2011 00:00:06 GMT, ddm.datetime8601: 2011-03-27T00:00:06, ddm.time24: 00:00:06
This task was scheduled at 01:00:00 in IdM and was exectued at 01:00:08 GMT by the runtime, and you can see the local time is being correctly reported as 02:00:08 BST. Note also the ddmdatetime8061 is also 02:00:08 i.e. BST.
Local Time: Sun Mar 27 02:00:08 GMT+0100 (BST) 2011, UTC Time: Sun, 27 Mar 2011 01:00:08 GMT, ddm.datetime8601: 2011-03-27T02:00:08, ddm.time24: 02:00:08
In the database the entry values MXI_VALUES ModifyTime field has the GMT / UTC timestamp.
I also set up some pending value objects to be applied at 00:59:59 and 01:30:00 to see if the 01:30:00 would be 'skipped' as the locl clock change would've gone from 00:59:59 to 02:00:00. Well the pending values were correctly applied and expired and no 'lost' transactions happened as a result of the change.
So essentially it seems to me that the IdM runtime and scheduler times are all based on UTC / GMT.
I guess it's only an issue twice a year if you're expecting something to happen at a specific local time 01:00:00 or if you've got a global user base and their account expiry should be in each user's own country's local time. In these cases, it would seem that you'd need to convert the schedule times and pending value times to UTC first before setting them in the database.
Has anyone else had any issues, thoughts, questions or suggestioins on scheduling tasks which span the DST time change when switching to and from Daylight Savings Time.
Edited by: Paul Abrahamson on Mar 27, 2011 10:51 AM

Read here:
http://www.appleinsider.com/articles/10/10/11/applesays_ios_software_update_to_fix_pesky_alarm_clockbug.html

Since Time Change, iCal and iPhone Calendar Time Are All Messed Up

Ever since the most recent daylight-savings time change, I noticed all events I created in iCal, when synced with my iPhone, became an hour off. If I edit the event on the iPhone, it stays the correct time on my iPhone, but when it syncs with iCal again, the time on iCal goes off by another hour, even though the time for the event on the iPhone stays correct. (Hopefully that makes sense) Has anyone else experienced this problem? It is incredibly annoying, because now I have no trust in any of my calendar entries as to what the correct time is.
As an example: I created an event for Sunday the 16th on iCal on my Mac for a 1-hour soccer game from 8:00PM - 9:00PM. When I synced my iPhone, I noticed a few days later that the event on my iPhone now said the event was from 9:00PM - 10:00PM...one hour off! I edited the event on my iPhone, and re-synced. Now my iPhone has the correct time (which I manually edited on the phone) but iCal now says the event goes from 7:00PM - 8:00PM. Again, an hour off, but in the reverse direction (an hour off early, rather than late). When I sync now, even though the times on the iPhone and the times on iCal don't match, they do not change...it's as if either the computer or the phone didn't recognize daylight savings time or something, and thinks it has the correct time for the event. Both my Mac and my iPhone's clocks do display the correct time and date, however, so it's not like the system clock is off. It is completely bizarre, and I entered my entire teams schedule this way, so ALL games were off, and now is completely screwed up. Please help.
Message was edited by: Hamster Huey
Message was edited by: Hamster Huey

Yes, I did. I posted an identical post in the iPhone forum since no one answered here. http://discussions.apple.com/thread.jspa?threadID=1791145&tstart=0
The first reply solved the problem. It involved the Time Zone setting in iCal Advanced preferences for me.

Time change - SAP Impact

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