ZoneKit is unclaimed —

ZoneKit

ZoneKit is a free collection of time and time-zone utilities, including a live world clock, a visual meeting planner, a time-zone converter, and a shareable countdown timer. All tools run entirely client-side in the browser using Intl.DateTimeFormat for IANA-timezone math, with no backend, no API, and no sign-up required. It also publishes reference guides on UTC, time differences between popular city pairs, and dated event countdowns. User preferences (added cities, format choice, saved countdowns) are stored locally on the user's device rather than on a server.

What it's for

checking current time across multiple cities without arithmeticfinding a meeting time that overlaps working hours across several time zonesconverting a specific time from one city/time zone to anothercounting down to a future event with a shareable linkchecking when colleagues in other offices are awake before messagingtracking market open/close times across London, New York, and Tokyochecking whether it's a reasonable hour to call family abroad

Features 15

'Tomorrow'/'Yesterday' day labels for cities on a different calendar day
12-hour and 24-hour format toggle
Add custom cities from a list of 65+ major cities
Automatic daylight saving time handling
Countdown Timer with shareable URLs encoding title, date, and time
Dated event countdown pages (e.g. Christmas, New Year, Black Friday)
Dedicated reference guides for city-pair time differences (e.g. London-New York, New York-Tokyo)
GDPR-aware cookie consent banner
Live ticking world clock updated every second
Meeting Planner with color-coded 24-hour bands for working/early/late/sleeping hours per city
No sign-up or account required
Persistent city selections and preferences saved between visits (stored locally in browser)
Quick meeting time check tool
Runs entirely client-side using Intl.DateTimeFormat, no backend or API
Time Zone Converter supporting half-hour and quarter-hour offsets (e.g. India UTC+5:30, Nepal UTC+5:45)

At a glance

free tier

TypeWeb app

DeploymentCloud

PlatformsWeb

Forremote workers, families spread across countries, traders and finance staff, travellers, sports fans, global teams

Complianceself-reported

GDPR

Pricing

Product is entirely free with no paid tiers; funded by display advertising rather than subscriptions.

FreeFree

Entirely free, no sign-up required; supported by display advertising.