# How many Feb. 29s have you seen? **URL:** \ **Category:** In My Humble Opinion\ **Created:** [February 13, 2013, 2:38pm UTC](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177 "2013-02-13T14:38:58Z")\ **Posts on this page:** 6\ **Page:** 2
**Author:** ![Zeldar](https://avatars.discourse-cdn.com/v4/letter/z/b77776/32.png) [@Zeldar](https://boards.straightdope.com/u/Zeldar)\ **Post date:** [April 6, 2013, 6:20pm UTC](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177/21 "2013-04-06T18:20:02Z")
As a glorified bump to this thread which appears to be stalled out at the moment I have built this table of Julian Days for the Feb/29 of the years shown, using [Julian Date Converter](http://aa.usno.navy.mil/data/docs/JulianDate.php) (which has a good description of what that entails), and a resulting span of ages for that particular year’s Leap Day. ```auto 4/6/2013 2456388 Year # Julian Ages 2012 - 1 2455986 0-1 2008 - 2 2454525 1-5 2004 - 3 2453064 5-9 2000 - 4 2451603 9-13 1996 - 5 2450142 13-17 1992 - 6 2448681 17-21 1988 - 7 2447220 21-25 1984 - 8 2445759 25-29 1980 - 9 2444298 29-33 1976 - 10 2442837 33-37 1972 - 11 2441376 37-41 1968 - 12 2439915 41-45 1964 - 13 2438454 45-49 1960 - 14 2436993 49-53 1956 - 15 2435532 53-57 1952 - 16 2434071 57-61 1948 - 17 2432610 61-65 1944 - 18 2431149 65-69 1940 - 19 2429688 69-73 1936 - 20 2428227 73-77 1932 - 21 2426766 77-81 1928 - 22 2425305 81-85 1924 - 23 2423844 85-89 1920 - 24 2422383 89-93 1916 - 25 2420922 93-97 1912 - 26 2419461 97-101 ``` The resultant sorted values after 97 voters with those age ranges attached looks like this ```auto View Poll Results: What's your earliest Leap Yeat to be alive? 1976 - 10 12 12.37% 33-37 1984 - 8 11 11.34% 25-29 1960 - 14 11 11.34% 49-53 1980 - 9 10 10.31% 29-33 1964 - 13 10 10.31% 45-49 1968 - 12 9 9.28% 41-45 1972 - 11 7 7.22% 37-41 1988 - 7 6 6.19% 21-25 1956 - 15 6 6.19% 53-57 1948 - 17 6 6.19% 61-65 1952 - 16 3 3.09% 57-61 1996 - 5 2 2.06% 13-17 1992 - 6 1 1.03% 17-21 1944 - 18 1 1.03% 65-69 1940 - 19 1 1.03% 69-73 2000 - 4 0 0% 9-13 Voters: 97 ``` ---
**Author:** ![Max\_the\_Immortal](https://avatars.discourse-cdn.com/v4/letter/m/6de8d8/32.png) [@Max\_the\_Immortal](https://boards.straightdope.com/u/Max_the_Immortal)\ **Post date:** [April 6, 2013, 7:05pm UTC](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177/22 "2013-04-06T19:05:52Z")
All of them. ---
**Author:** ![Zeldar](https://avatars.discourse-cdn.com/v4/letter/z/b77776/32.png) [@Zeldar](https://boards.straightdope.com/u/Zeldar)\ **Post date:** [April 7, 2013, 7:57pm UTC](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177/23 "2013-04-07T19:57:47Z")
Just to see if there’s any way to pull together the data from past threads that have dealt with ages and years when Dopers were born and such details, I have backtracked through the threads I’m familiar with to build this list: =============================== > **[Poll: Approximately how old are you?](https://boards.straightdope.com/sdmb/showthread.php?t=218601)** > > …version 6141241, I bet. Unfortunately, I believe “old” and “age” are under the search string length limit. Choices: a) 0-15 b) 16-22 c) 23-30 d) 31-40 e) 41-50 f) 50+ B for me. The crowd here seems to be absolutely ancient by my standards,... Poll: Approximately how old are you? 10-21-2003, 03:13 AM electric!sheep > **[What Dopers were born in the same year?](https://boards.straightdope.com/sdmb/showthread.php?t=458574)** > > I realize this thread probably won’t fly with people who don’t care to share their age, but I was inspired by this thread on knowing people very close to you in age, so I figured I’d give it a shot. Just post your year of birth and find out who else... What Dopers were born in the same year? 03-05-2008, 04:41 PM Asimovian > **[What is the average age of Dopers?](https://boards.straightdope.com/sdmb/showthread.php?t=554346)** > > Has Cecil et. al. ever done any marketing research (and released it on the boards) of the average age of the people who post on the Straight Dope Message Boards? I ask this because of a thread in CS that ask where were you when John Lennon was... What is the average age of Dopers? 03-02-2010, 04:21 PM middleman > **[How old are you?](https://boards.straightdope.com/sdmb/showthread.php?t=554352)** > > In an attempt to answer the question in this thread: How old are you, rounded down to the nearest whole year? How old are you? 03-02-2010, 04:55 PM Giles > **[Old Folks: Stand and be counted](https://boards.straightdope.com/sdmb/showthread.php?t=555195)** > > As of this hour 440 Dopers have responded to the Poll: How old are you? in In My Humble Opinion started 03-02-2010, 04:55 PM by Giles The breakdown of the Over 50 crowd is: 50-59 years 61 13.86% 60-69 years 23 5.23% ... Old Folks: Stand and be counted 03-09-2010, 07:15 AM Zeldar > **[THIS IS THE DOPER YEAR/MONTH/DECADE OF BIRTH POLL (ignore all others)](https://boards.straightdope.com/sdmb/showthread.php?t=555733)** > > A Poll: click your birth year/month/decade Inspired obviously by the birth year poll, I’ve placed a poll here as a column to determine by completely non-scientific random sample the average and mode ages of Dopers. Please select the 2 year range in... THIS IS THE DOPER YEAR/MONTH/DECADE OF BIRTH POLL (ignore all others) 03-13-2010, 11:24 AM Sampiro > **[How old are you?](https://boards.straightdope.com/sdmb/showthread.php?t=610944)** > > In another thread, Really? Hmm. Let’s find out! I just did ranges, not exact ages, but you can post your age if you want. I think 13 is the minimum age to be a Doper. Poll to follow. ETA: I am 35. How old are you? 06-02-2011, 03:33 PM Anaamika =============================== If you know of other threads dealing with these topics, I’d appreciate a link to them. ---
**Author:** ![Zeldar](https://avatars.discourse-cdn.com/v4/letter/z/b77776/32.png) [@Zeldar](https://boards.straightdope.com/u/Zeldar)\ **Post date:** [May 15, 2013, 12:16pm UTC](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177/24 "2013-05-15T12:16:58Z")
bump ---
**Author:** ![Cazzle](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cazzle/32/75_2.png) [@Cazzle](https://boards.straightdope.com/u/Cazzle)\ **Post date:** [May 15, 2013, 12:37pm UTC](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177/25 "2013-05-15T12:37:57Z")
I was a fetus in Feb '76, so I didn’t count that one. 9, from 1980 onwards. ---
**Author:** ![Zeldar](https://avatars.discourse-cdn.com/v4/letter/z/b77776/32.png) [@Zeldar](https://boards.straightdope.com/u/Zeldar)\ **Post date:** [May 15, 2013, 12:53pm UTC](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177/26 "2013-05-15T12:53:35Z")
> [@Eliahna](#): > > I was a fetus in Feb '76, so I didn’t count that one. 9, from 1980 onwards. Good answer! I suspect fewer than 1 in 10,000 fetuses (feti?) remember such stuff anyway. [Previous page](https://boards.straightdope.com/t/how-many-feb-29s-have-you-seen/650177.md?page=1)