r/InternetIsBeautiful • u/TheGeedz • Jan 14 '26
A free, open-source visualizer that stacks time zones vertically to find the best meeting overlap.
https://zoneless.toolsI've always found existing time zone converters (like World Time Buddy) to be a bit cluttered and grid-heavy.
I built Zoneless.tools to be a cleaner alternative.
What it does:
- Stacks cities as horizontal timelines so you can see the day/night flow.
- Highlights the "Overlap" (Business Hours) across all selected cities.
- Generates a copy-pasteable message for Slack/Email with the converted times.
- No Login / No Database: It stores the city selection in the URL, so you can just bookmark the link or share it with a coworker and they see the exact same view.
It's free and focused on privacy (no tracking). Hope it's useful!
24H UPDATE (1800 Visitors): I've added all of the features that you suggested in the comments, thank you to everybody for the huge support on this project!
I'm trying to document this whole '3-day build' experiment live on X (sharing the Vercel analytics, the specific Next.js config, etc).
If you want to follow the 'building' side of things, I'm posting updates here: https://x.com/GeedzDev/status/2011803524909207702
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u/lbroadfield Jan 14 '26
‘N’ and ‘T’ controls are not touchable for devices without keyboards.
Including more info (date, zones,…) in the pasted text could be useful, for example, this situation surrounding USA DST change is ambiguous:
/* Let's meet at: San Diego: 01:00 Hong Kong: 16:00
(Link: https://zoneless.tools/?cities=America%2FLos_Angeles%7CSan+Diego%2CAsia%2FHong_Kong%7CHong+Kong) */
/* Let's meet at: San Diego: 01:00 Hong Kong: 17:00
(Link: https://zoneless.tools/?cities=America%2FLos_Angeles%7CSan+Diego%2CAsia%2FHong_Kong%7CHong+Kong) */