Windows logs events in the system language. Use a tool like TurnedOnTimesView which reads the raw numeric codes and displays English descriptions irrespective of OS language.
Get-EventLog -LogName System | Where-Object $_.EventID -in 6005,6006,41 | Select-Object TimeGenerated, EventID, Message | Export-Csv -Path "C:\PowerEvents.csv" PC On Off Time
: Open CMD and type net statistics workstation . Look for the "Statistics since" line to see the last boot time. Windows logs events in the system language