1, take the initiative to add the other party as a friend, and the historical date agreed by the other party will know what date it was added.

2. If the other party actively adds himself as a friend, then the agreed date is the date of adding friends.

3. By querying the history of the address book, you can find the time to add friends.

4. If you delete the chat record with your friends, you won't see the time to add friends. Wechat is a social application, which can estimate the time to add a friend for the first time by looking at the date of chat history. In addition to the date of the chat record, WeChat also provides functions such as tag management, permission setting of friends circle, message undisturbed, deletion and blacking out to manage the friend relationship. When WeChat was updated to version 8.0, the function of adding friends must select friends' permissions was introduced. When adding friends, you must select one of the options, and you can simply set the friend permissions.