by history: i always use it with - (minus) 😄

Syntax: shutdown [/i | /l | /s | /sg | /r | /g | /a | /p | /h | /e | /o] [/hybrid] [/soft] [/fw] [/f] [/m \\Computer][/t xxx][/d [p:]xx:yy [/c "Kommentar"]]

I call it good development 😉