The total working time is 2004 hours a year, and the signature is your own name. The "Labor Law" does not stipulate the total working hours throughout the year, but only lists that overtime work on Sundays, holidays and months should not exceed 36 hours. According to the national practice, workers should work 250 days a year, that is, the legal working time is 20 hours a year, with an average of 20.83 days a month and 8 hours a day, after deducting 52 weeks of public holidays (104 days) and legal holidays (1day) from the annual calendar time of 365 days. According to this calculation, the average monthly working hours should be around 167 hours. One year 12 months, 12 times 167 equals 2004 hours. To sign is to write one's name, especially to express agreement, recognition, responsibility or obligation.