1335: "Now"

This forum is for the individual discussion thread that goes with each new comic.

Moderators: Moderators General, Prelates, Magistrates

SomeoneSomewhere
Posts: 34
Joined: Tue Jul 02, 2013 4:51 am UTC

1335: "Now"

Postby SomeoneSomewhere » Wed Feb 26, 2014 5:07 am UTC

Image

This image stays roughly in sync with the day (assuming the Earth continues spinning). Shortcut: xkcd.com/now


It seems almost 180° out, to me... It should be ~6 PM here in NZ, but apparently it's just before 6AM.

SomeoneSomewhere
Posts: 34
Joined: Tue Jul 02, 2013 4:51 am UTC

Re: 1335: "Now"

Postby SomeoneSomewhere » Wed Feb 26, 2014 5:09 am UTC

Three threads posted within 24 seconds. Wow.

viewtopic.php?f=7&t=108101
viewtopic.php?f=7&t=108102

SomeoneSomewhere
Posts: 34
Joined: Tue Jul 02, 2013 4:51 am UTC

Re: 1335: "Now"

Postby SomeoneSomewhere » Wed Feb 26, 2014 5:12 am UTC

And it's fixed (almost - it's just after 18:00 here in NZ, but the comic implies that it's just before).

sonoftunk
Posts: 11
Joined: Thu Feb 25, 2010 3:50 am UTC

Re: 1335: "Now"

Postby sonoftunk » Wed Feb 26, 2014 5:14 am UTC

Yeah, it's was also exactly 12 hours off for me, but it is fixed now. Really cool though. I'd like to find a way to turn this into a lockscreen or an app or something on my phone.

Edit: It changed again. Now there are hour markers.

User avatar
patzer
Posts: 431
Joined: Fri Mar 30, 2012 5:48 pm UTC
Contact:

Re: 1335: "Now"

Postby patzer » Wed Feb 26, 2014 5:19 am UTC

:shock:

For the record,

Spoiler:
*checks for new xkcd*
*notices new comic*
*thinks it's one of Randall's better creations*
*checks fora for thread*
*finds none*
*tries posting my first ever thread in IXCT*
*checks again for thread*
*finds none*
*clicks submit*
*notices two threads*
*refreshes page*
*notices three threads*

This was the first thread posted. My thread was second, showing this:
patzer wrote:Image

Title text: "This image stays roughly in sync with the day (assuming the Earth continues spinning)"

But what about continental drift???

Edit: I'm a few seconds too late posting this. Now is not good enough. I need the past.


Ucim was third, showing this:
ucim wrote:Image
Is there a new definition of "noon" that I am not aware of? It's close to midnight on the east coast of the US, and the comic disagrees. Or maybe the yellow stuff is all mustard?

I'd also extend the "rude to call" range thru 10am.

Jose

Ucim and I then deleted our posts.


Great comic by Randall as usual, I may bookmark this page.
If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family Anatidae on our hands. –Douglas Adams

User avatar
rwald
Posts: 153
Joined: Mon Jan 29, 2007 7:14 am UTC
Contact:

Re: 1335: "Now"

Postby rwald » Wed Feb 26, 2014 5:21 am UTC

I was going to post a reply about "it looks like there's a picture for every 15 minutes, but even though it's 12:15 AM EST it just switched from the 12:15 picture to the 12:30 picture; I guess it switches as soon as the time hits," but then I refreshed the page and it had gone back to the 12:15 picture. So take anything I say below with a grain of salt, because the page is still being updated.

Anyway, it looks like the image format is pretty simple: the current image URL is http://imgs.xkcd.com/comics/now/17h15m.png, and a quick check suggests there's a separate image for every 15 minute block. I'm not sure whether the images are centered on the given time (and change halfway between them) or are centered on some other point (and change appropriately); I think this detail is still being worked out. Also, I'm kind of curious what time zone is being used; current UTC would be 5h15m, not 17h15m, so why is Randall using values 12 hours off from UTC?

EDIT: It's 12:22 AM EST, and the 17h30m picture is now the "official" one, so I guess it's switching halfway between the stated times.

EDIT 2: Come to think of it, due to the aforementioned "12 hours off" issue with the time codes, this means that at 00h00m, the UK is on the very top of the map. Perhaps this is why this nomenclature was chosen.
Last edited by rwald on Wed Feb 26, 2014 5:28 am UTC, edited 2 times in total.

User avatar
rhomboidal
Posts: 797
Joined: Wed Jun 15, 2011 5:25 pm UTC
Contact:

Re: 1335: "Now"

Postby rhomboidal » Wed Feb 26, 2014 5:25 am UTC

It's always now everywhere in the world. (Except in Alaska due to International Date Line complications.)

Farabor
Posts: 157
Joined: Wed Apr 06, 2011 9:46 am UTC

Re: 1335: "Now"

Postby Farabor » Wed Feb 26, 2014 5:57 am UTC

When will it be now?
Soon.

sonoftunk
Posts: 11
Joined: Thu Feb 25, 2010 3:50 am UTC

Re: 1335: "Now"

Postby sonoftunk » Wed Feb 26, 2014 6:03 am UTC

Farabor wrote:When will it be now?
Soon.


How soon?
Sir! We've identified their location!

User avatar
Eternal Density
Posts: 5579
Joined: Thu Oct 02, 2008 12:37 am UTC
Contact:

Re: 1335: "Now"

Postby Eternal Density » Wed Feb 26, 2014 6:06 am UTC

Did anyone notice the javascript?

Spoiler:
Play the game of Time! castle.chirpingmustard.com Hotdog Vending Supplier But what is this?
In the Marvel vs. DC film-making war, we're all winners.

User avatar
Djehutynakht
Posts: 1546
Joined: Thu Feb 10, 2011 1:37 am UTC

Re: 1335: "Now"

Postby Djehutynakht » Wed Feb 26, 2014 6:08 am UTC

Very useful (well, as useful as it can be in comic version). And very cool.

SomeoneSomewhere
Posts: 34
Joined: Tue Jul 02, 2013 4:51 am UTC

Re: 1335: "Now"

Postby SomeoneSomewhere » Wed Feb 26, 2014 6:11 am UTC

Eternal Density wrote:Did anyone notice the javascript?

Spoiler:


Your spoiler is empty...

It looks like an auto-update similar to that on Time, though.

frwld
Posts: 2
Joined: Wed Feb 26, 2014 6:09 am UTC

Re: 1335: "Now"

Postby frwld » Wed Feb 26, 2014 6:16 am UTC

Now that's a biased map projection! Northern-centric (given the relative sizes) and southern-centric (centric!) at the same time. Mercator would be proud (but still prefer his own map for marine navigation).

User avatar
keithl
Posts: 659
Joined: Mon Aug 01, 2011 3:46 pm UTC

Re: 1335: "Now"

Postby keithl » Wed Feb 26, 2014 6:17 am UTC

I wonder if the animated image will be replaced (moving the country labels) when Daylight So-Called-Saving Time starts or ends in various places. Given the large number of permutations, that would be more frames than Time. I suppose they could be generated algorithmically from the Linux tzdate files and directories.

aluchko
Posts: 1
Joined: Wed Feb 26, 2014 6:25 am UTC

Re: 1335: "Now"

Postby aluchko » Wed Feb 26, 2014 6:28 am UTC

Djehutynakht wrote:Very useful (well, as useful as it can be in comic version). And very cool.


The live update makes it very handy to have around, I'm printing out a copy to hang on my wall as we speak!

User avatar
addams
Posts: 10266
Joined: Sun Sep 12, 2010 4:44 am UTC
Location: Oregon Coast: 97444

Re: 1335: "Now"

Postby addams » Wed Feb 26, 2014 6:43 am UTC

Of all the Cool stuff….
This is Amazing.

It's a comic!
A simple distraction.
A little Art, A little wit.

Like G. Shultz', Charlie Brown.
Like Bill Watterson's, Clavin and Hobbs.

This is Art, Wit and Technology.
And; It works?? weird, but Great!

Spoiler:
Really. How useful is it?
If you have the internet, finding out what time it is AnyWhere is easy and fast.

If you do not have the internet, you do not have a functioning comic.
Life is, just, an exchange of electrons; It is up to us to give it meaning.

We are all in The Gutter.
Some of us see The Gutter.
Some of us see The Stars.
by mr. Oscar Wilde.

Those that want to Know; Know.
Those that do not Know; Don't tell them.
They do terrible things to people that Tell Them.

User avatar
stib
Posts: 13
Joined: Mon Oct 12, 2009 12:25 pm UTC

Re: 1335: "Now"

Postby stib » Wed Feb 26, 2014 6:52 am UTC

IANAWD but wouldn't this be easier / better with html5? The inner image could be rotated continuously and precisely, and you could even have several layers to deal with daylight savings. Or is there something bad about canvas elements?

merrik
Posts: 1
Joined: Wed Feb 26, 2014 6:39 am UTC

Re: 1335: "Now"

Postby merrik » Wed Feb 26, 2014 6:54 am UTC

Well, St. Petersburg is 2-3 timezones away from it's UTC+04. Moscow is labeled in Asia, to the right of the Ural Mountains, more than 1k kilometers away. Actually, Russia is spread to 11 hours, while there are only 8 timezones. Shouldn't the countries be stretched to their actual timezones? Russia should be twisted as it's timezones are not always set by longitude.

Eutychus
Posts: 446
Joined: Mon Jan 25, 2010 6:01 am UTC
Location: France

Re: 1335: "Now"

Postby Eutychus » Wed Feb 26, 2014 7:19 am UTC

Farabor wrote:When will it be now?
Soon.

Wait for it.
Be very careful about rectilinear assumptions. Raptors could be hiding there - ucim

User avatar
NeatNit
Posts: 44
Joined: Tue Apr 03, 2012 9:10 pm UTC

Re: 1335: "Now"

Postby NeatNit » Wed Feb 26, 2014 7:28 am UTC

stib wrote:IANAWD but wouldn't this be easier / better with html5? The inner image could be rotated continuously and precisely, and you could even have several layers to deal with daylight savings. Or is there something bad about canvas elements?

I think it's just more reliable this way. Many smartphone and other browsers *coughnintendocough* don't really support HTML5 to a great extent. In these cases the comic might look completely wrong, were it made with HTML5. Using a simple image and JavaScript to refresh it when needed, guarantees compatibility with all graphical browsers. Even if JavaScript doesn't work, an image would still appear and the page would simply have to be refreshed manually if so desired.

For the record, IANAWDE.

tri-sapphire
Posts: 1
Joined: Wed Feb 26, 2014 7:32 am UTC

Re: 1335: "Now"

Postby tri-sapphire » Wed Feb 26, 2014 7:37 am UTC

Aw, no Hawai'i?

:(

gene123
Posts: 6
Joined: Fri Jun 07, 2013 8:00 pm UTC

Re: 1335: "Now"

Postby gene123 » Wed Feb 26, 2014 8:08 am UTC

I'd buy a physical version of this implemented as a 24-hour analog clock with the outer band rotating and the inner being stationary (or vice versa). Very useful thing to hang in the office and combine novelty and utility.

Could be a DIY project but the hard part is finding/converting a regular 12-hour analog clock to a 24-hour one.

Eutychus
Posts: 446
Joined: Mon Jan 25, 2010 6:01 am UTC
Location: France

Re: 1335: "Now"

Postby Eutychus » Wed Feb 26, 2014 8:54 am UTC

gene123 wrote:I'd buy a physical version of this implemented as a 24-hour analog clock with the outer band rotating and the inner being stationary (or vice versa). Very useful thing to hang in the office and combine novelty and utility.

Could be a DIY project but the hard part is finding/converting a regular 12-hour analog clock to a 24-hour one.


Do you have $39,900 to spend?
Be very careful about rectilinear assumptions. Raptors could be hiding there - ucim

Eutychus
Posts: 446
Joined: Mon Jan 25, 2010 6:01 am UTC
Location: France

Re: 1335: "Now"

Postby Eutychus » Wed Feb 26, 2014 8:57 am UTC

Or $23.72?
Be very careful about rectilinear assumptions. Raptors could be hiding there - ucim

serrin85
Posts: 1
Joined: Wed Feb 26, 2014 9:02 am UTC

Re: 1335: "Now"

Postby serrin85 » Wed Feb 26, 2014 9:12 am UTC

What about daylight savings (or lack there of in certain parts of the world)? Brisbane has been outed from the other east coast cities of Australia (I'm sure central and Western Australia don't appreciate being ignored but who cares, they're tiny (population-wise) and suck) when mid-autumn hits and the other states realise that daylight savings is a terrible idea and turn their clocks back, will Brisbane disappear?
*cue discussion about daylight savings and how it's more energy efficent and yadadada*

Tub
Posts: 472
Joined: Wed Jul 27, 2011 3:13 pm UTC

Re: 1335: "Now"

Postby Tub » Wed Feb 26, 2014 9:35 am UTC

stib wrote:IANAWD but wouldn't this be easier / better with html5? The inner image could be rotated continuously and precisely, and you could even have several layers to deal with daylight savings. Or is there something bad about canvas elements?

Nothing bad, there's just this one unreasonably popular browser that doesn't support them.
http://caniuse.com/#search=canvas
Damn you, IE8!

It's also overkill. You could just rotate the png itself using css transforms.
http://caniuse.com/#search=transform
Damn you, IE8!

Both variants suffer from artifacts though. If you had the original image as an SVG, you could just vary a single parameter inside the SVG to rotate the inner part.
http://caniuse.com/#search=SVG
Damn you, IE8!


Anyway, the real reason is probably that randall isn't a web developer either, and considered this solution to be easier to implement. If you look at the javascript, the image url is generated server side.

bmcpherson
Posts: 3
Joined: Wed Feb 26, 2014 10:54 am UTC

Re: 1335: "Now"

Postby bmcpherson » Wed Feb 26, 2014 11:06 am UTC

So cool.

My first reaction was to turn this into a free iOS app assuming the CC license allows for that.

My second reaction was that I want a physical version on the wall as I work with people in many different countries/time zones so knowing the approximate time in any location at a glance is useful.

Amazon UK actually sells a *real* 24-hour wall clock that is not too expensive so I ordered one and my plan is to try and print the rotating portion of the image on some kind of lightweight material that can be mounted onto the hour hand of the clock. The clock is 30cm which is bigger than my printer can handle but it should be a fun project...
--
Brent

syberspot
Posts: 8
Joined: Mon Mar 25, 2013 7:37 pm UTC

Re: 1335: "Now"

Postby syberspot » Wed Feb 26, 2014 11:54 am UTC

But does it update for daylight savings time? And, does it skip daylight savings time on years that are multiples of 100 but not 400?

jensalik
Posts: 1
Joined: Wed Feb 26, 2014 12:15 pm UTC

Re: 1335: "Now"

Postby jensalik » Wed Feb 26, 2014 12:22 pm UTC

I wonder how long it will take till an android-app of this is released...

SQB
Posts: 5
Joined: Mon Mar 25, 2013 11:09 am UTC

Re: 1335: "Now"

Postby SQB » Wed Feb 26, 2014 1:14 pm UTC

It's not now, but 1337 is the comic after next.

Antici...
Spoiler:
pation!

SomeoneSomewhere
Posts: 34
Joined: Tue Jul 02, 2013 4:51 am UTC

Re: 1335: "Now"

Postby SomeoneSomewhere » Wed Feb 26, 2014 1:15 pm UTC

syberspot wrote:But does it update for daylight savings time? And, does it skip daylight savings time on years that are multiples of 100 but not 400?

I thought the 100 but not 400 thing was leap years, not DST?

DST would be a horror, with all the different ways countries calculate when to have it.

User avatar
sparehead3
Posts: 27
Joined: Tue Oct 02, 2012 4:27 am UTC

Re: 1335: "Now"

Postby sparehead3 » Wed Feb 26, 2014 1:24 pm UTC

For reference:

Spoiler:
96 images from 00h00m.png to 23h45m.png in 15m increments
located at http://imgs.xkcd.com/comics/now/##h##m.png
A full-size (706 x 705) .gif animation of all frames comes to 6.78Mb

soytsauce
Posts: 3
Joined: Wed Jul 29, 2009 5:44 pm UTC

Re: 1335: "Now"

Postby soytsauce » Wed Feb 26, 2014 1:28 pm UTC

sonoftunk wrote: Really cool though. I'd like to find a way to turn this into a lockscreen or an app or something on my phone.


This was my idea too, either for a phone or a windows background. I'm a pretty novice programmer, and figured this might be a good learning exercise--if anyone wants to help out, PM me and we can figure something out.

SQB
Posts: 5
Joined: Mon Mar 25, 2013 11:09 am UTC

Re: 1335: "Now"

Postby SQB » Wed Feb 26, 2014 1:31 pm UTC

SomeoneSomewhere wrote:
syberspot wrote:But does it update for daylight savings time? And, does it skip daylight savings time on years that are multiples of 100 but not 400?

I thought the 100 but not 400 thing was leap years, not DST?

DST would be a horror, with all the different ways countries calculate when to have it.


Nah, it could just grab your local time and your offset, and translate that to UTC to get the proper image.

It doesn't, though.

galfromaway
Posts: 1
Joined: Wed Feb 26, 2014 1:30 pm UTC

Re: 1335: "Now"

Postby galfromaway » Wed Feb 26, 2014 1:33 pm UTC

But you left out Newfoundland, which is in a timezone all its own!!

SomeoneSomewhere
Posts: 34
Joined: Tue Jul 02, 2013 4:51 am UTC

Re: 1335: "Now"

Postby SomeoneSomewhere » Wed Feb 26, 2014 1:51 pm UTC

You should be able to get the UTC time with 'new Date().getTime();'. No need to apply any offsets.

I thought we were referring to the placement of names on the map moving depending on if DST was in effect for that area, not for your area.

dp2
Posts: 346
Joined: Wed Aug 18, 2010 3:06 pm UTC

Re: 1335: "Now"

Postby dp2 » Wed Feb 26, 2014 1:54 pm UTC

SQB wrote:
SomeoneSomewhere wrote:
syberspot wrote:But does it update for daylight savings time? And, does it skip daylight savings time on years that are multiples of 100 but not 400?

I thought the 100 but not 400 thing was leap years, not DST?

DST would be a horror, with all the different ways countries calculate when to have it.


Nah, it could just grab your local time and your offset, and translate that to UTC to get the proper image.

It doesn't, though.

This clock has nothing to do with the observer's time. It will be broken in less than two weeks due to DST. It assumes everything at the same longitude is at the same time. That's out the window during DST.

ETA: it could shade areas that observe DST, but with the size and the distortion, it wouldn't be very effective.

SomeoneSomewhere wrote:You should be able to get the UTC time with 'new Date().getTime();'. No need to apply any offsets.

I thought we were referring to the placement of names on the map moving depending on if DST was in effect for that area, not for your area.


Correct. The point here is to show what time it is somewhere else (hence the "Business hours" and "Rude to call" bands)

User avatar
squall_line
Posts: 170
Joined: Fri Mar 20, 2009 2:36 am UTC

Re: 1335: "Now"

Postby squall_line » Wed Feb 26, 2014 2:20 pm UTC

I'm less concerned/questioning about DST, and more curious about the "Day/night" banding on the outer rim.

For those who wish to turn this into an app (although why you would want to put it through the Apple Scrubber is beyond me), you should toss in a latitude check/calculation and adjust the day/night ring dynamically based on the sunrise/sunset for the given day of the year at that latitude.

If you were an anal-retentive perfectionist, that is...

Personally, my favorite world time clock, besides the one currently in my house (a Howard Miller World Time Clock), is a world time clock in the pyhsics/astronomy building on the University of Iowa campus, which not only rotates to show the current time, but also has the solar shadow for day/night that adjusts throughout the year based on the tilt of the planet. I'm sure it's not one-of-a-kind, but it's the only one I know for which I know the location (and it's huge).

Oh, and to be a pedant (since someone was waiting for it), it's "When will then be now?", not "When will it be now?"

User avatar
WibblyWobbly
Can't Get No
Posts: 506
Joined: Fri Apr 05, 2013 1:03 pm UTC

Re: 1335: "Now"

Postby WibblyWobbly » Wed Feb 26, 2014 2:27 pm UTC

When you say this comic is happening now, well, when exactly do you mean? See, I've already waited too long.

User avatar
Flumble
Yes Man
Posts: 2248
Joined: Sun Aug 05, 2012 9:35 pm UTC

Re: 1335: "Now"

Postby Flumble » Wed Feb 26, 2014 2:32 pm UTC

dp2 wrote:It will be broken in less than two weeks due to DST. It assumes everything at the same longitude is at the same time. That's out the window during DST.

My thoughts exactly.

I think you're best off building a planetarium-like structure if you want a mechanical world clock with DST.


Return to “Individual XKCD Comic Threads”

Who is online

Users browsing this forum: xtifr and 36 guests