How to add 9 1 Gregorian weather to the mobile phone desktop?

The operation method of adding 9 1 Gregorian calendar weather to the mobile phone desktop is as follows (taking Redmi 1s mobile phone as an example):

First, turn on the Redmi 1s mobile phone;

Second, click "App Store";

Thirdly, search for "9 1 Gregorian weather" in the search box of "App Store", as shown in the following figure:

Fourth, finally select the corresponding software and click "Install".