Questions tagged [には]

I came accross : 行くのに１時間かかる。 行くには１時間かかる。 And someone told me I could say : 行くのには１時間かかる。 So I would like to know the difference between all these in details please, thanks

I don't understand exactly the meaning of "部長が自分のミス俺のせいにしゃがってさ" the whole sentence is: 今日もさ 部長が自分のミス俺のせいにしゃがってさ冗談じゃ ないよ お前 部下をかばってこそ 上司だろ おい! the meaning in the text is: today, the head of my department tried to blame me for his screwup. “This is…