Which year: guess which year each photo was taken
87 comments
·April 17, 2025TrackerFF
One interesting observation is how much less variation there has been in clothes for the past 20 years or so. Someone from 2005 could look completely undisguisable from someone today, by just wearing regular non-fashion forward 2005 clothes. Same goes for haircuts.
Same can't really said about someone from 1955 and 1975, 1980 - 2000, etc.
edit: Score 4695 Avg. Years Off 3.0
jillesvangurp
It's an interesting phenomenon that you can observe with other things as well like tastes in music. I think it has something to do with people having access to about sixty years of people trying out just about everything they could think off. It's all been done before at this point and it's all available in new and fresh forms. So, it's no longer about collectively picking something that is genuinely new but individuals cherry-picking whatever that they like. And it helps of course that we're not funneling media through a handful of TV channels, newspapers, etc. anymore like we used to. So people cherry pick where they get their information as well.
2mlWQbCK
Is that really true? It is true for me, but I always assumed that is just because I were younger last century. In 1990 I could easily tell if someone was looking like 1980, but today I could never guess if someone looked like 2015 or 2025. I would be happy to learn that this is because fashion actually slowed down, but until proven wrong I will just assume it is because I am older and not paying attention.
simgt
> I could never guess if someone looked like 2015 or 2025
It's the length of the socks
Jensson
> could never guess if someone looked like 2015 or 2025.
If you don't think the younger generation dress crazily then fashion didn't change. Every previous generation thought the next generations clothes were crazy.
calderwoodra
It's easier to identify women's fashion among millennials imo:
2000's: jeans
2010's: leggings
2020's: not those
pyb
This cultural phenomenon is sometimes called "the Long 90s"
redbell
That was fun and definitely a bit challenging to figure out—I scored 3677, landing in the top 46%, with an average of 9.2 years.
As for some (hopefully constructive) feedback: I think the year selection slider could benefit from a few adjustments. If an image is from the distant past—say, pre-1950s—it might make more sense to use decade-based precision rather than individual years. For example, a black-and-white photo had me way off that caused me to lose 20 years of my life :). It would be helpful if such images were categorized more broadly, something like “191x”.
For mid-century images (roughly 1960–1990), a 5-year interval could strike a better balance. I came across one from that era and was six years off. And for more recent images, say post-2010, a one-year precision feels reasonable.
Of course, this suggestion mainly applies if we're deducing the year based on visual cues like clothing, hairstyles, and the environment. If the game is intended more as a quiz based on the text descriptions under the images, then it shifts more into trivia territory—and that’s a different type of challenge altogether.
dmos62
The score takes the magnitude of error into account. Isn't it nice that guessing the precise year is more rewarded than guessing the decade?
pngeez
Hi, I made this game. Really appreciate the feedback! Seems like older images tend to be frustrating, so I think I'll use them less going forward.
Also, older photos are scored more generously, so being a few decades off won’t tank your score nearly as much as it would on a newer one.
Al-Khwarizmi
For the record, I especially enjoyed the older photos. Maybe it's just a matter of making it obvious in the UI that they penalize less, so that score maximizers won't be annoyed with them.
asdf12341
Hi, I think you should credit the photographer of these as well.
frereubu
This is fun. One tiny bit of UI feedback - when maximising the image, I'd expect the escape key to go back to the game, and found it a bit frustrating when it didn't.
pembrook
Great idea! The trick is to zoom into peoples clothing, and then the associated event becomes quite obvious. Eg. Photo of Disco, no crazy lapels, obviously towards the end of disco, which puts you within a year or two.
Might have gotten lucky but zooming in on clothing got me to 1.8 years off on average (top 2%).
david-gpu
Pinch to zoom didn't work for me on Firefox for Android, and neither did double tapping.
janwillemb
Long press the picture, open image in new tab. Then you can zoom.
qw
It doesn't work for me either (Android+Chrome)
SlackSabbath
Settings > Accessibility > Zoom on all websites
nly
Me either. Squinting at it didn't help.
Jensson
I just went by feel of each and got 2.4 year average, also top 2%. I guess it doesn't do higher than top 2% then.
> obviously towards the end of disco
What is the end of disco?
input_sh
Disco is probably the only genre whose "death" (as in very quick drop from being mainstream) can be traced to a very specific date: July 12th, 1979.
Al-Khwarizmi
Interesting. Can we organize an event to blow up reggaeton records (or trap, or latin urban, or whatever they call it now - sounds all similar to me) and hope for it to go away?
frereubu
I presume OP meant towards the end of the disco era.
peripitea
Tried plugging it into the new o3 model out of curiosity and it got 0.2, i.e. it got everything exactly right save for one that it missed by a year.
delusional
You know, there are easier ways to cheat at the game? The photos are from the internet, a reverse image search will surface all of them.
scrollop
Why would s/he come here to boast about cheating on a game? S/he was obviously testing the AI.
mr_mitm
I read it as more of an experiment to gauge the capabilities of AI than an attempt at cheating.
I'm impressed that AI is that good.
codetrotter
Is it good, or are those photos already in the training data that the model was trained on?
Would be interesting to see how well it would fare on five photos from different years, using pictures that have never previously been uploaded anywhere.
xg15
I guess I'm getting a bit paranoid, but whenever I see a game like this, my first suspicion is that it's just a trainset annotation UI in disguise.
rubychill
This was fun! Sent it through to my "gamedle" group chat and it's probably going into my daily rotation.
One thing though, the url in the share text doesn't start with https:// so it doesn't turn into a clickable link when posted in some chat clients.
Einenlum
I love it. Just too bad you can't zoom in the picture on mobile. Had to open the picture on a new tab.
usr1106
Usability on mobile Firefox was not great.
szenrom
In Firefox, you can now go into Accessibility options and enable zooming on all sites which should help, it did for me.
jjbinx007
I could zoom in okay on Chrome for Android but I always enable zoom override in accessibility so it might be that.
rasso
Zooming in worked for me in Arc on iPhone
pngeez
This is great to know, thanks! Will hopefully have it working for tomorrow's challenge.
jonwinstanley
I pinched the page and it zoomed ok
pndy
I've got 4861 (top 2% ~3 years off)
If someone likes additional challenge then Teuteuf Games' WhenTaken has both guessing the year and location: https://teuteuf.fr/
They also got Worldle which was covered on hn - https://news.ycombinator.com/item?id=30367906
me_bx
Yes, the extra challenge of having to guess the place really adds some fun in WhenTaken. Direct link to it: https://whentaken.com/game
satiric
4878, avg 2.4 years off. Way better than I thought I'd do, I think I just got lucky. I agree that it's a lot like chronophoto.app, but that also has freeplay. This has a nicer looking UI but I think a worse feature set. In particular the scroll-to-zoom and freeplay on chronophoto are nice to have.
Edit: I had seen the photo in the subway before, or something very similar. It's an interesting decision to use photos from big events that people might recognize. (Not inherently bad IMO, just not what I would have intuitively chosen)
pngeez
Thanks! This is all super helpful. I’m hoping to have something like Chronophoto’s zoom working by tomorrow’s game, and a freeplay-style mode is in the works too.
Do you think it's more satisfying to guess based on clues like tech, clothing, and photo quality, or when you recognize the historical event or era (assuming it’s something a little less recognizable than that subway photo)?
8474_s
This is interesting concept, if there was more variety it could be some like timeguessr.
dbcooper
WhichYear 4/20/25 4939 pts (top 1%) 1⃣ avg. years off
2⃣ 1⃣ 1⃣ 1⃣ 1⃣
whichyr.com
There's a similar game, but for guessing both the year and the location
https://timeguessr.com/
Discussed on HN a couple of years ago too: https://news.ycombinator.com/item?id=37203511
edit: found another game like OP in the linked thread https://www.chronophoto.app/game.html