There is no mail man going to Neptune!
It depends where you live not everywhere is the same time but it should come from 12pm-3pm sometimes it comes later than you expect but all mail times are different.
It depends where you live and the route of the mail deliverer in your town. Mine comes around 2:30 Monday through saturday
In Blaine MN the mail man comes on Saturday in the morning hours.
No as it is santas day to derliver everything
Yes
when ever the postal service decides to give it to you (Edited by Clankerz 1/29/11 12:30 PM): During the week (Monday - Friday) the mailman comes around 1:30 - 3:00 PM. However during the weekend i don't know 100%. On Sunday though, mail does not come, and on Saturday, it may come earlier, on time, or later.
the man/women who delivers your mail
There are currently no man made satellites or robots on the planet Neptune.
No
on Neptune
The mailcarrier is not like Santa. Santa Claus apparently visits hundreds of thousands of kids in one 6-hour period. Mailcarriers, on the other hand, go to work and fill their bags and trucks so that they are starting to carry mail around 8:45am to 9:00am, depending on how much mail there is. They finish their routes at around 3:45pm to 4:15pm, again depending on much mail there is. If you live near the beginning of the mail carriers route, then you might get your mail from, say, 9:15am to 10:15am. If you live near the end of the route, you might get your mail around 3:00pm to 4:15pm. If you live in the middle of the route, your mailbox is filled some time between 10:00 am to 3:30pm. Mail delivery occurs Monday through Saturday, but not on public holidays. Make sense?
There has only been one probe to Neptune and that was "Voyager 2".