According to clause 13 of ch. I of Instruction No. 59, during the business trip of a person who works part-time, the average earnings are kept at the enterprise that seconded him.
That is, during the days of the employee’s stay on a business trip from the main place of work, payment is not made at the place of part-time work. Not only that, the current legislation does not provide for granting an employee leave without salary at a part-time job if he is on a business trip at his main place of work.
That is, in such a case, you can mark “NO” or “IN” in the timesheet.