Solution : https://service.sap.com/sap/support/notes/882610 (SAP Service marketplace login required)
Key words : 
patch level 25a small correction, patch level 92sap kernel release 7, form 'yyyy/mm/dd', abap command set country, format 'dd/mm/yyyy', program i18n_maintain_tislcal ends unexpectedly, kernel patch levels, abap program 'i18n_maintain_tislcal', downward compatible kernel 6, purely arithmetic formula
Related Notes : 
       
| 1375438 | Globalization Collection Note | 
| 831333 | Enable Japanese emperor, Islamic, and Farsi date format | 
| 587150 | Support of Arabic-script languages |