How to rest in the white night? How many days do you work a month? How many days off? Is this a good deal?

White night off is a three-day cycle, with day shift 12 hours on the first day, night shift 12 hours on the second day, rest on the third day and 20 shifts in 30 days; It is equivalent to 30 normal classes and 68 hours more than the legal working hours.

White night rest is a four-day cycle, with day shift 12 hours on the first day, night shift 12 hours on the second day, and rest on the third and fourth days. It takes 30 days 15 shifts, which is equivalent to 22.5 normal shifts, 8 hours more than the legal working hours.

The above algorithms are all calculated at 30 per month.