しゅっしゃ出社shussha
1.

The act of going to one's workplace, typically a company or office, usually in the morning for a day of work.

2.

The specific action of arriving at a place of employment, indicating the start of a workday.

3.

The process of commuting to a company to perform job-related duties, contrasting with the act of leaving work.

Example:

日曜日に出社したので月曜日が代休だった。