週末に.
週末にね。
over the weekend
Until this weekend
週末はどうするんだい。
What're you going to do this weekend?
今週.
今週中に.
つぎの週
来週するよ。
I'll do it next week.
Even though it is the weekend...
今週から
週末は自由です。
the week before last
Something unfortunate happened to me during the weekend.
Until next week.
楽しい週末をね。