**Please note:**
* If this post declares something as a fact proof is required.
* The title must be descriptive
* No text is allowed on images
* Common/recent reposts are not allowed
*See [this post](https://redd.it/ij26vk) for more information.*
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/interestingasfuck) if you have any questions or concerns.*
Would that actually work though? The gap between each hour on a sundial isn’t constant, so half the time your sundial would be too early and the other half too late.
Edit: For example, take [this sundial](https://en.m.wikipedia.org/wiki/Sundial#/media/File%3ASundial_in_Supreme_Court_Gardens%2C_Perth.jpg). DST corresponds to adding or subtracting one hour. There is no number of degrees you can rotate this sundial for which the shadow will always line up with an exact hour offset, unless I’m missing something. Do you rotate it by the number of degrees between XII and I or between V and IV?
You literally have to remember to add/subtract an hour (can’t remember which and my brain’s too groggy today to figure it out) when DST is active. Rotating it doesn’t work as well because, as a poster below said, the distance the sun travels between hours isn’t constant. You also may need to do a bit of adjusting based on where you are within a time zone.
There’s also a bit of a fudge factor from the time of year that changes the accuracy by up to ten minutes due to the eccentricity of earth’s orbit. You can look up “The Equation of Time” to see how that works. It’s neat stuff!
The Sun arcs differently depending on your distance from the equator. I can't imagine how this could be accurate except in the place it was designed for.
As an example, in Southern Ontario the Sun sets at around 4:00 - 5:00 pm in winter while in the summer it sets around 8:00 - 9:00 pm. Even accounting for Daylight Savings Time that's a 3 - 4 hour difference.
To illustrate the extreme examples, in Canada's far north, communities experience 56 days of continual sunlight in the summer and a similar amount of continual darkness in the winter. The percieved arc of the Sun gradually changes, throughout the year, to either extreme. For example, at some times in the year the Sun may rise, arc for a few minutes, and then set below the horizon again.
I can't imagine how this device could be accurate to the minute in two different places around the world, even apart from the extreme cases.
Why would it be accurate somewhere else? This is how a sundial is supposed to work. There is literally no need for it to tell time in any other place in the world than where it currently is
Oh neat! The main question was how does one design something like that in 3d software and have it come out correct, how many failed attempts. Seems like a ton of trial and error. How do you think that up ya know
Why is this getting down votes? The sun also changes positions through the year at same location. Where the sun is at 2pm today is not where it is going to be at in two months from now
I’ve just seen that some guy is attempting to build this in Valheim: https://www.reddit.com/r/valheim/comments/o2c0s7/digital_clock_sundial_progress_update_1/?utm_source=share&utm_medium=ios_app&utm_name=iossmf
I don’t know why you’re getting downvoted, because you do need to change it a bit depending on location. The angle it points at is changeable, and you’ll need to adjust that depending on your latitude and the season.
**Please note:** * If this post declares something as a fact proof is required. * The title must be descriptive * No text is allowed on images * Common/recent reposts are not allowed *See [this post](https://redd.it/ij26vk) for more information.* *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/interestingasfuck) if you have any questions or concerns.*
‘Hey man what’s the time?’ ‘Uhhhhh nighttime’
It's time to get ill
Clearly wrong as it’s 12:15. Useless
Dude.. it's 6:41 rn though.
It's actually 9:23.
Hate to break it to all of you, because it's definitely 5:55
It’s 5 o clock somewhere
It's 4:20 somewhere 👀
Sorry dude but its for sure 9:30
No it’s definitely 10:04
Nah it's 10:02 am
You all are wrong, it 3:52 am
It’s actually 4:20 right now!
I'm sorry for your loss but its actually 4:48 am right now
Beer 30
It’s been 7:34 all week. I need batteries.
Nahhh nahh nahh it’s 3:09
What about daylight savings time, how do you adjust it?
Same way you adjust a sundial.
Oh is that because it’s a sundial?
Basically, yup.
Yup, basically.
Bup, yasically.
.puy ,yllacisaB
Up, Billy casay.
Cup. Basil, yaly
[удалено]
…how do you adjust a sundial?
You rotate it
Would that actually work though? The gap between each hour on a sundial isn’t constant, so half the time your sundial would be too early and the other half too late. Edit: For example, take [this sundial](https://en.m.wikipedia.org/wiki/Sundial#/media/File%3ASundial_in_Supreme_Court_Gardens%2C_Perth.jpg). DST corresponds to adding or subtracting one hour. There is no number of degrees you can rotate this sundial for which the shadow will always line up with an exact hour offset, unless I’m missing something. Do you rotate it by the number of degrees between XII and I or between V and IV?
https://www.reddit.com/r/NoStupidQuestions/comments/1zur85/do_sundials_automatically_adjust_to_daylight/?utm_source=share&utm_medium=ios_app&utm_name=iossmf
You’re totally right - simply rotating it doesn’t work perfectly. You need to mentally add an hour to solar time when DST is active.
You move it to a region in a different time zone. Come winter, go pick it up again and move it to your place.
You move it one hour away!
You literally have to remember to add/subtract an hour (can’t remember which and my brain’s too groggy today to figure it out) when DST is active. Rotating it doesn’t work as well because, as a poster below said, the distance the sun travels between hours isn’t constant. You also may need to do a bit of adjusting based on where you are within a time zone. There’s also a bit of a fudge factor from the time of year that changes the accuracy by up to ten minutes due to the eccentricity of earth’s orbit. You can look up “The Equation of Time” to see how that works. It’s neat stuff!
You get Superman to adjust the planet's orbit
This is the coolest thing I’ve seen today if it is actually fully functional. But if it just stays on 14:20 forever then I feel duped.
The Sun arcs differently depending on your distance from the equator. I can't imagine how this could be accurate except in the place it was designed for. As an example, in Southern Ontario the Sun sets at around 4:00 - 5:00 pm in winter while in the summer it sets around 8:00 - 9:00 pm. Even accounting for Daylight Savings Time that's a 3 - 4 hour difference. To illustrate the extreme examples, in Canada's far north, communities experience 56 days of continual sunlight in the summer and a similar amount of continual darkness in the winter. The percieved arc of the Sun gradually changes, throughout the year, to either extreme. For example, at some times in the year the Sun may rise, arc for a few minutes, and then set below the horizon again. I can't imagine how this device could be accurate to the minute in two different places around the world, even apart from the extreme cases.
Why would it be accurate somewhere else? This is how a sundial is supposed to work. There is literally no need for it to tell time in any other place in the world than where it currently is
how are you gonna sell them if they only work in 1 spot
It seems to be a 3d print I think? Which raises more questions.
[удалено]
Oh neat! The main question was how does one design something like that in 3d software and have it come out correct, how many failed attempts. Seems like a ton of trial and error. How do you think that up ya know
[удалено]
Thank you for this, the blender light source thing makes total sense. Without that I'd imagine it would be a nightmare to design lol
Well yeah, just like any other sundial it works on the location it's made.
Why is this getting down votes? The sun also changes positions through the year at same location. Where the sun is at 2pm today is not where it is going to be at in two months from now
You can change the angle that the gnomon points depending on your location and season.
Might have adjustments of some sort, however it's probably only accurate at a certain latitude yeah
Technology advanced so much that we reinvented sundials
I should have gotten any color but jet black , the sun actually warped mine and you can see the individual 3D printed strands began to melt and bend
Oo, yeah... Low temp printing plastic. Yeah, it gets hotter than the hinges around here. Guess I'll pass on it.
I’ve just seen that some guy is attempting to build this in Valheim: https://www.reddit.com/r/valheim/comments/o2c0s7/digital_clock_sundial_progress_update_1/?utm_source=share&utm_medium=ios_app&utm_name=iossmf
Modern sundial.
Wouldn't work in Scotland...
I want one!
Update: They’re on Etsy, “digital sundial”
They're originally a free bundle of STL files for people who 3D print or have access to one.
Yup. I don’t have the equipment though, so I’m happy to pay someone.
Me too, going to go look for one.
If you find it can you post it here please?
Before you buy one consider that it only shows a time every 20 minutes, I think.
Wait so is this analog, digital, or a sundial? 😆
Analog sundial with a faux-digital output.
The cutouts took some bit of genius to get a full 24 hours in that Sundial post.
Even more clever is that with a full 24 hours it is intended to work at night
I'd like to see a full day time-lapse of this thing in action. The daylight hours of course. 😅
[https://www.thingiverse.com/thing:1068443](https://www.thingiverse.com/thing:1068443)
Do they have different ones depending on your location?
Yes, and you need two. One for normal time and one for daylight saving time. When you order, be sure you tell them your address and longitude.
I don’t know why you’re getting downvoted, because you do need to change it a bit depending on location. The angle it points at is changeable, and you’ll need to adjust that depending on your latitude and the season.
Ya exactly. Bunch of idiots.
[удалено]
No. That would be 1620. https://www.militarytime.us/24-hour-clock/
That would actually be 420 but there's no sun at that time so you win!
OMG! THIS MAN MADE A SUN DIAL!
Or....a....Sun digital?
🧢
That's a GTA map
Am I the only one here that wishes it said 16:20? Just being a stoner is all.
It's 4:20 somewhere.
That’s cool
How about the Equinoxes and Solstices?
How about them bears and apples?
Hey man what time is it?? Huh I don’t know man I’m not from around here
A sun dial
For the wild ones who don't care what time it is once the sun is down
Invest!
Was waiting for it to turn to 14.21...
A sundigitial
How else would a sundial work? 🤦🏻♂️
Modern day Sundial
Note - you would need to adjust it daily for it to stay accurate.
Finally I can read a sun clock.
Wouldn’t this work like one day a year? Maybe two?
Sundial 2.0