As a Noun:
1. A recurring period of time (such as a week, month or year) the unit of which has already been mentioned and which the signer is in at the time of speaking. English = this week, this month, this year, etc.
2. The remaining time within the unit of time (week, month, year, etc.) being talked about; the rest of this week, this month, this year, etc.
As Modifier:
1. Used at the beginning or end of a sentence, or immediately next to a verb, to mean the action takes place sometime during the following unit of time being talked about (week, month, year, etc.), or after some other time reference point. English = during this week (month, year), during that week (month, year), this time.