About the mailing time of ordinary letters

The first weight of the letter fee is less than 100g, the local port is adjusted from 0.6 yuan to 0.8 yuan, and other ports are adjusted from 0.8 yuan to 1.2 yuan;

For the continuous weight fee above 100g, 100g remains unchanged in the local port and1in other places. 2 yuan and 2.0 yuan remain unchanged.

As long as no one is pressing the letter over there, you can send it a week ago, but just in case, you can send it ten days in advance.