Meridian is peach blossom, year and month are peach blossoms inside the wall, and day and time are peach blossoms outside the wall. Peach blossoms in the wall are the love of husband and wife, while apricots go out of the wall outside.
But, you know, it's not the peach blossoms outside the wall that do that. It's just a tendency, which shows that this tendency is easy to happen and must be combined with the eight characters.