These two SAP notes are the most important in this situation: note 7417 (Conversion between standard time and daylight saving time) and note 3015480 (Daylight saving time: best practices).
Although the clock goes forward one hour and thus no “double time” occurs, you might have to take some actions to ensure the continuity of you SAP system. Our expert Mark gathered his expertise and is happy to share with you a hands-on checklist:
- Identify all background jobs due to run on Sunday, 27 March between 2 AM and 3 AM and ensure that the 1-hour forward time change does not adversely affect these jobs. If in doubt postpone the job until after 3 AM.
- Connect with the application owners/key users and find out whether there are applications that are dependent on exact timing or time difference information and determine how these applications should be handled during the night of the switch to DST.
- Synchronize clocks: ensure that clock times are synchronized to the second between the database- and application servers.
- Check the platform- and product specific warnings to see whether any of these apply to your SAP environment
- SAP HANA: Possible terminations caused by time difference between application and database server (SAP note 1932132) an check HANA DB for DST switch (SAP note 2080216)
- Software Update Manager (SUM): in SAP note 2557518 SAP recommends stopping the SUM at a time before the change to Daylight Saving Time and only resuming it after the change has occurred.
- IBM iSeries: SAP note 391658.
- NewGL delta extractor to BI (only relevant for SAP ERP systems on a Enhancement Package 6 or lower): various problems if extractors runs at the time of the DST change; see SAP notes 1454474 and 1581238.
Still hungry for more? Download our whitepaper which enriches the check list with additional examples, a list of all key SAP notes and an overview of the time difference with other time zones.
For those who are not at ease, reach out and we will be happy to help!