ClockSimulator.com is a minimalist analog clock utility with privacy-conscious architecture and global accessibility features. The site acknowledges user privacy rights through explicit policy reference and local-storage design; enables cultural participation via IANA timezone support; and respects user autonomy through extensive customization options. As a free, open-source tool with transparent attribution, it demonstrates community-oriented values aligned with multiple UDHR provisions.
Very clean and polished! I love how smooth the seconds hand move.
I work in an environment where we look at the time across many different timezones around the world. A couple of feature requests if you are ever in the mood:
1. Make it possible to specify the timezone.
2. Make it possible to create a grid of clocks, each with different timezones.
3. Persist the grid/timezone state in the URL so links can be easily shared.
I like it. Simple, well-designed, smooth. It's nice everything fits in a single HTML page with no external dependencies. The inline style and script is human readable, which is becoming rare these days.
Can you set it to ticks instead of continuous running of the seconds clockhand That would be great. The vast majority of analog clocks have a ticking clockhand for the seconds, if any at all (can you make the seconds optional?).
The only clocks I know of with such a motor are station clocks, like the Swiss one mentioned already, or the German variant (same manufacturer). But these have a twist: the minute clockhand does not run continuously, but also ticks. The seconds are running a little bit faster until the clockhand is in the upper position, then waits for a signal from the main clock. Only then the minute clockhand jumps one minute and the seconds are starting again.
I appreciate the straightforwardness of this. If I could make one request, it would be to support more of a "tick" mode instead of the continuous second hand motion. It doesn't even have to actually make noises, I just like the visuals of the clock hand starting and stopping every second. I don't know if there's a more formal name for this in Clock World
The PTB (national metrology institute of Germany) provides a similar clock for decades. It is one of the few displaying the real time, not your computer’s time. The difference (if any) can be shown.
May I suggest that we keep it as clean as it now, and maybe have something like the domain `/advanced` for those who want more features? (If OP has time to implement them)
I built a digital clock for my neighbor with Alzheimer a few years ago. It was a web app with an analog clock and it would show Morning / Afternoon / Evening / Night on the side.
I felt quite proud of myself, since she often got confused about whether it was 6am or 6pm on her analog clocks at home. (Alzheimer's can bring a loss of the sense of time.)
But while she thought it was a great idea, every time I came back, she had turned off the dedicated tablet we set up for the purpose
I ended up just buying her an Alzheimer's clock — a 24 hour clock with pictures indicating the time of day, for $15 or so. That one stayed where we put it!
This is something I vibecoded to learn my kid the clock. I think this is a very good use of ai coding, stuff that is for visualization and temporary learning.
Beautiful! One small thing on the iPhone using Safari; it would be nice to have the clock vertically centered. Now it’s near the bottom half of the screen. Looking great otherwise!
This is actually pretty cool. It's just a clock, nothing more, nothing less. Animations are smooth. I actually prefer these analogue clocks over digital as I seem to be able to plan ahead better with it.
(You can put a `TZ="Wherever"` variable at the start for different timezones, and those that don't like the seconds ticking can pass e.g. 0.01 instead of 1 to the -update option).
Content explicitly references privacy policy and emphasizes user control over local storage, indicating editorial awareness of privacy as a right.
FW Ratio: 50%
Observable Facts
Page contains explicit 'Privacy' link and references privacy policy at /privacy.html.
Settings panel includes labeled toggle: 'Save settings' with tooltip 'Save settings to local storage,' giving user explicit control over data persistence.
No login, authentication, or cookie consent banner present; no third-party tracking pixels detected.
Inferences
Transparency about privacy practices and local storage option indicates recognition of privacy as a fundamental right.
Local-storage architecture with no server-side persistence demonstrates data minimization principle aligned with privacy protection.
Absence of tracking and advertisement suggests commitment to user privacy dignity.
No explicit statement regarding autonomy, but feature descriptions are neutral in tone.
FW Ratio: 40%
Observable Facts
Site accepts 'tz' URL parameter supporting 'any IANA timezone' with documented examples from Americas (America/New_York), Europe (Europe/London), Asia (Asia/Tokyo).
Interface provides multiple customization toggles: theme (dark/light/transparent), second hand display (tick/smooth/hidden), border visibility, shape (round/square), numbers display, shadows, and custom dimensions.
Inferences
Timezone support enables users to maintain connection to diverse geographic and cultural contexts aligned with personal identity.
Extensive customization options demonstrate structural respect for individual user choice and personal preferences.
Combination of timezone + theme + display options enables users to adapt tool to reflect their own conscience and cultural orientation.
Site demonstrates privacy-conscious architecture: no authentication required, settings stored locally rather than server-side, explicit privacy policy provided, no visible tracking mechanisms or advertising.
build 1ad9551+j7zs · deployed 2026-03-02 09:09 UTC · evaluated 2026-03-02 10:41:39 UTC
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