How long will it take to get [certain starting ability point allocation]?

In general, it is more likely to generate evenly distributed ability points (e.g. STR6 DEX6 INT7 LUK6) than skewed ability points (e.g. STR4 DEX13 INT4 LUK4). The total ability points is 25, and the minimum for any ability is 4. The maximum for an ability is 13, though that is rare (see below).

The way starting abilities are generated: (Not verified, though seems to be a good approximation)

All abilities are set equal to 4.
Randomly choose STR, DEX, INT, or LUK and add one point to that ability.
Repeat until STR + DEX + INT + LUK = 25.
The table below shows approximately how long it will take to generate certain ability point distributions. These times are approximate and actual results may vary. One person may get a certain distribution within 1 minute whereas another person will take 10 minutes, depending on clicking speed and pure luck.

Ability Points Exact Probability Approximate Time Required
07 06 06 06 7560/262144 1 minute
07 07 07 04 1680/262144 2 minutes
09 06 06 04 0756/262144 6 minutes
12 05 04 04 0009/262144 8 hours
13 04 04 04 0001/262144 3 days!
- - -
XX XX 04 04 0512/262144 9 minutes
The table shows how hard it is to get large numbers like 12 and 13, especially where you want them. Therefore, don't set your goal too high, unless you have time for 3 days of nonstop playing!

Remember that this is theoretical probability, meaning this is very different from experimental probability. In other words:

You may get 13, 4, 4, 4, on your first few clicks or 7, 6, 6, 6 in a few hours
http://strategywiki.org/wiki/MapleStory/FAQs