To catch you up, the times mentioned were first thing in the morning, when the child comes home from school, after bath time, and at bedtime. In this article I will be explaining why these times are most common and why they are recommended or not recommended. Please feel free to comment with your opinion or story related to this topic. I will be posting my story as another article later this week.
The first time mentioned was first thing in the morning. There are a couple of reasons this time is used a great deal. One is because it is thought that if the spanking is given in the morning, the child will remember it the rest of the day and therefore be more likely to behave in order to avoid receiving a real punishment spanking. The other reason is convenience. This is because usually the child wears either underwear or pajamas with no underwear under them to bed. There are two reasons this can be convenient. One is that the parent won’t need to take down any clothing as they would later in the day to increase the severity of the spanking. The other is that if the parent wants the child’s bottom bared for the spanking there are less clothes to take down, which makes for an easier battle if the child is normally resistant. The morning spanking is actually the most recommended, although some do view that it could keep the child from sleeping due to worry.
The next time mentioned was after school. This is usually done in order for the child to be punished for anything they did at school that the parent wouldn’t have seen. This is the next to least recommended because it might cause stress during the school day, which usually turns into bad grades and trouble concentrating. Also, if the parent picks up the child from school, knowing the child is going to get a spanking when they get home can make for an awkward ride home.
Next was after bath time. This time is mainly used for convenience for parents who use bare bottom spanking. The child will usually be told to call the parent after they are finished bathing but not to get dressed yet. This leaves the child already naked and makes a bare bottom spanking extremely easy to administer. This time is least recommended because of the fact that it is considered overly humiliating and because the child’s bottom is bared. Another reason is because the child might not dry off well enough, which will leave their bottom wet, which will lead to easy blistering. Some harsher parents will tell the child not to dry off before the spanking, usually saying the child’s bottom will be dry after the spanking. This is definitely not recommended, as spanking a child on a wet bottom can cause severe blistering.
Finally, we have bedtime. Bedtime spankings are the most common type of maintenance spanking and have been used before the term maintenance spanking was really coined. This time is used because the parent believes it makes up for any misdeeds they didn’t catch the child doing during the day. Some parents believe that a bedtime spanking allows the child to release any guilt they have from the day and therefore be able to sleep easier. Another reason for this timing is like the morning spanking because it is convenient due to the child’s clothing. Very often a child is told to already be in position for a bedtime spanking by a certain time and that if they aren’t the spanking will be harsher. This is thought to teach the child structure and discipline. This time is well recommended and the only cons to it are the idea that a spanking before bed can cause trouble sleeping and/or dreams about being spanked which can cause psychological problems later in life. This is very rare though, so the time is still well recommended.

Comments
First of all, spanking a child is really nonsensical discipline. They do not learn right from wrong, but rather, that those larger than them can hurt them. Second, spanking a child who hasn't done anything to deserve it, but merely as a 'reminder' is extremely harmful to them.