Solution : https://service.sap.com/sap/support/notes/444277 (SAP Service marketplace login required)
Key words :
begin end month day n-, customizing table/view v_ttzdv, variable summer time rules, usa follow dst time, month day n-, symptom system time change, energy policy act, clock change occurs, daylight saving time, uniform time act
Related Notes :
| 919538 | Daylight saving time start/end in USA and Canada as of 2007 |
| 673556 | End of daylight saving time in U.S.A. |
| 398374 | Problems when converting summer time <-> winter time |
| 198411 | Current data and information about time zones |
| 161837 | Manual change from winter to summer time |