There is nothing particular about the specific date, and the so-called exquisiteness is also a metaphysical category. Not credible. Under the long-term fixed investment, the difference between date and date is very small, or this difference can not be predicted and judged artificially, so you can choose a date with peace of mind. The suggestion is that the salary is paid 1 week.
In addition, the monthly fixed investment of family funds is not recommended to exceed 20% of the family's monthly remaining assets, otherwise it is easy to give up if the pressure is too great. The fixed investment time of stock funds is not recommended to be less than 7 years, otherwise there will be a certain probability of maturity loss.