# COMMUNITY : FORUMS : COMMUNITY BLOG

## User-given Patches Wear Off in a Month. :( (Nevermind :D)

After receiving a donut patch, I got an e-mail from Robot (he likes to send e-mail), and I read that Once someone receives a patch, it will wear-off in a month.. I think that time-span is kinda short.. Anyone else?

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Matt214978 years ago
Wait is this true?
8 years ago
If you read the discussion below (and it's a pity that Bumpus didn't properly edit the text of his topic), you'll find Canida's very clear statement on the subject. Once you've found that and read it, let us know what you think.
8 years ago
Iactually read that right after I posted that comment
8 years ago
Actually, the email you get when patched still says they only last for a month.
8 years ago
We know. That's what prompted Bumpus's original posting, and all the discussion which ensued. Canida's reply below clarifes the poorly written e-mail; patches stay visible on your profile page for just a month, and then fall down to the "view all" subpage.
Goodhart8 years ago
Hmm, what if instead of only 1 month, they lasted for a FULL 31 days ? ;-)
8 years ago
But one in every 12 patches you get lasts for 28 ;)
8 years ago
yeah, except ever 4 years, it lasts 29, unless that year ends in double 0 and is not divisible by 40 or something like that.....
8 years ago
I thought there were no exceptions to leap year.
8 years ago
Here is an official algorithm for Leap year:

if year modulo 400 is 0 then leap
else if year modulo 100 is 0 then no_leap
else if year modulo 4 is 0 then leap
else no_leap

Reading from the bottom up, it is saying leap yr every 4 years, unless the year is divisible by 100, then there is no leap yr. UNLESS it is also divisible by 400, which then IS a leap year (I did the calculation a bit differently in my initial post, but it works out the same way).

For further reading on the subject, see The Leap Yr. & Leap Day usage explanation
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