thanks everybody,
already sent email to the employer.
no time card,
working hours: 8:00am - 6:00pm, pay: $8:00/hour, the employee provide all the working clothes, safety shoes, safety glass by themselves.
sometimes in the morning, go to the company, the supervisor told me to go home, say today no job.
sometimes at noon, told me to go home, say no more job for today.
but if you worked there, you should do everything, like cleaning, including washroom.