Solution : https://service.sap.com/sap/support/notes/1640773 (SAP Service marketplace login required)
Key words :
sap netweaver -> general settings -> time zones -> maintain geographical assignments, time remains permanently shifted, coordinated universal time reason, sap system time zone, system time zone, local time zone, daylight saving time, eastern european time, time zone assignment, operating system level
Related Notes :
| 1644244 | Ukraine: Daylight saving time ends in October 2011 after all |
| 198411 | Current data and information about time zones |