こんしゅう今週konshuu
1.

Refers to the currently ongoing week, encompassing the days from the most recent Sunday to the upcoming Saturday.

2.

Denotes the present week in a temporal context, often used to indicate events or tasks that are scheduled or need to be completed during this specific period.

3.

Indicates the week that is happening at the current moment, as opposed to previous or future weeks.

Example:

今週はどちらにいらしゃいましたか。

こんしゅうじゅう今週中konshuujuuni
1.

Referring to the time period that lasts until the end of the current week, indicating that something should be accomplished before the week concludes.

2.

Implying a deadline that falls within the current week, suggesting that an action or event is expected to occur before the week has passed.

3.

Denoting any point in time during the current week, without specifying an exact moment, but indicating that it should happen by the week’s end.

4.

Suggesting that a task or obligation should be fulfilled at some time before the upcoming week begins, encompassing the entirety of the present week.

こんしゅうまつ今週末konshuumatsu
1.

The upcoming Saturday and Sunday, marking the end of the current week.

2.

The two-day period following the conclusion of the current work week, often associated with leisure activities or personal time.

3.

The time frame that includes both Saturday and Sunday of the present week, typically characterized by a break from regular weekday routines.

4.

The immediate weekend approaching, viewed in the context of current plans or events.

Example:

今週末は何も予定がない。