How can I translate this correctly into English "今晚怎么意思" I have a group of friends who regularly meet to play soccer, someone asked on WeChat: 


  今晚怎么意思


The reply given was the time that we start "7" (meaning 7pm).

I may be missing something very simple here, but I have never heard someone just ask 怎么意思.

So what is the correct way to translate this into English? 

Based on the reply, I don't see how this means "what time are we starting tonight" or "what time are we meeting tonight" - which is the kind of question I would expect if it was in English.
I think your friend was asking how to arrange the evening, not literally ask the time to meet. 「今晚怎麼意思？」 means “Any plans tonight?" in English.