Is it permissible for an employee to pray immediately after the Adhan, knowing that the employer compels him to pray during his late break, which causes him hardship?

If the employer provides time for prayer at the workplace, the employee must pray during this allocated time and not go to pray during work hours. The mentioned time is sufficient for eating and performing prayers. The employer is not obliged to enable the employee to go to the mosque as long as he permits him to pray at the proper time.