World Clock
A live, ticking board of the current time in every city you add. Set a home city for instant offset comparisons, sort by time zone or name, and toggle analog clock faces — all updating every second.
How to Use the World Clock
Features
Why a Home City Changes How Useful a World Clock Is
Most world clocks show every city's time next to its raw UTC offset and leave you to do the subtraction yourself — is UTC+9 three hours ahead of me, or five behind? That mental arithmetic adds friction every single time you glance at the board, and it's friction that compounds if you check the clock several times a day, which is exactly the behaviour pattern of anyone managing a distributed team or a long-distance relationship. Pinning a home city removes that step entirely: every other card recalculates its difference relative to wherever you actually are, so "Tokyo" reads as "+3.5h vs home" instead of "UTC+9," and the number that matters — how far away someone's day is from yours right now — is the number you see first.
Digital Precision, Analog at a Glance
Digital time is unambiguous but takes a half-second of reading to parse — you have to actually look at the numbers and interpret them. An analog clock face, by contrast, is something the eye reads as a shape before the brain reads it as a number; a quick glance at where the hands sit tells you roughly "mid-afternoon" or "just after midnight" faster than parsing four digits does, which is part of why analog clocks never fully disappeared even after digital displays became universal. The Analog Clocks switch adds a small live clock face — hour, minute, and second hands, all animating in real time — to every card without giving up the digital reading underneath it, so you get both the fast visual glance and the exact figure in the same card.
A Quick Example: Coordinating a Call Across Three Offices
Picture a support lead in London who needs a five-minute check-in with teammates in New York and Bengaluru sometime this afternoon. Rather than working out each offset by hand, they add all three cities to the board with London pinned as home. New York reads "−5h vs home" and shows an Early AM tag if it's still morning there; Bengaluru reads "+4.5h vs home" — the half-hour offset visible immediately rather than requiring a separate lookup — and its tag flips from Working to Evening as the day progresses. Scanning the three tags at a glance answers the actual question — "is there a window where nobody's asleep or just arriving" — far faster than converting each city's offset manually and cross-referencing typical office hours from memory.
World Clock vs. the Time Zone Converter — Which One Do You Need?
These two tools solve related but genuinely different problems, and it's worth being clear about which one fits your actual question. World Clock answers "what time is it right now, everywhere I care about?" — it's a live dashboard, always showing the present moment, and it's the right tool when you just need to glance at current time across a handful of cities before making a call. The Time Zone Converter answers a different question: "what does this specific date and time in one zone become in another?" — including dates entirely in the past or future, which a live clock structurally cannot show. Its Compare Zones mode goes a step further and functions as a meeting-time planner, checking a single proposed moment against every participant's zone at once. If you're checking "is it a good time to call my colleague right now," reach for World Clock; if you're scheduling next Tuesday's 3 PM meeting across four offices, reach for the Time Zone Converter.
Three Sort Orders, Three Different Questions
Order Added keeps the board stable and predictable — useful once you've arranged cities in an order that matches your own mental model, like grouping a team by office rather than by geography. West → East arranges cities by actual UTC offset, which is the natural choice for visually tracing how a workday rolls across the globe from one region to the next. A → Z drops geography entirely in favor of alphabetical lookup, the fastest option once a board has grown past a handful of cities and finding one specific entry matters more than seeing the global spread. None of the three changes what any card shows — only the order they appear in, so switching between them costs nothing to try.
Real-World Uses
- Remote and distributed teams — keep every teammate's local time visible at a glance, tagged by whether they're likely awake and working.
- International families and relationships — set your loved one's city as a comparison point and always know a good time to call.
- Trading desks and financial monitoring — watch multiple major market time zones simultaneously alongside your local time.
- Travel planning — check the current time and working-hours status at your destination before booking calls or activities around arrival.
- Customer support coverage — see at a glance which regional office is currently in business hours.
When Matching Clocks Don't Mean Matching Time Zones
It's tempting to assume that if two cities show the same time, they're interchangeable for scheduling purposes — but that's only true until a Daylight Saving Time boundary comes along. Arizona and neighbouring states in the US Mountain zone read identically for roughly eight months of the year, then diverge by an hour the moment the rest of the Mountain zone springs forward while Arizona (like Hawaii) sits out DST entirely. The same pattern shows up between Iceland, which never observes DST, and the UK, which does — both share GMT for part of the year and disagree for the rest. This is the practical reason the World Clock, and the rest of ToollyX's date tools, key everything by IANA city identifiers such as America/Phoenix rather than by a raw UTC offset: the identifier encodes the DST rule along with the city, so a card stays accurate through every seasonal transition without needing you to remember which cities are exceptions.
Why Browser-Based Processing Matters
The World Clock runs entirely in your browser, reading only your device's system clock and the browser's built-in IANA time zone database. The cities you add, your home-city choice, and your display preferences are never transmitted to ToollyX servers — there's nothing to log because there's no server-side involvement in the first place.