Knowing the exact time in another city sounds trivial. You could Google it, check your phone's world clock, or use any of the time zone widgets that have existed since the early web. So why does exact-time.now exist — and why do remote workers, traders, developers, and global teams keep coming back to it?
Because the difference between a general-purpose tool and one built specifically for a job is always in the details. exact-time.now is atomic-clock-synced, IANA-authoritative, and designed around the scenarios where getting the time slightly wrong actually costs you something: a missed call, a trade executed in the wrong window, a meeting invitation sent to a time that does not exist due to daylight saving.
It is free. It requires no account. And it covers every city in the world.
What exact-time.now actually shows you
When you open exact-time.now and search for a city, you get more than a number on a clock. Each city page shows:
- Live local time, updated every second, synced to official IANA timezone data
- UTC offset and whether daylight saving time is currently in effect
- Sunrise and sunset times for the current day
- Current weather for the city
- Day of the week and full date, formatted clearly
The IANA timezone database is the same authoritative source that every major operating system, programming language, and server uses to resolve timezone data. When exact-time.now says it is 14:32 in Tokyo, that is not an estimate — it is the same value your MacOS system clock would show if you changed your timezone to Asia/Tokyo.
This matters more than it sounds. Dozens of public-facing "world clock" tools use outdated or approximate timezone data and get DST transitions wrong by an hour — sometimes for days after the clocks change. exact-time.now pulls directly from IANA, so it is correct the moment a timezone rule changes anywhere in the world.
The tools that make exact-time.now genuinely useful for remote work
The live clock is the foundation. Around it, exact-time.now has built a set of tools that solve the specific problems that come up when a team is spread across multiple continents.
Time zone comparison
The compare time zones tool lets you put two cities side by side and see their current times simultaneously. The most-used pairs are built in — London vs New York, Tokyo vs London, Sydney vs Los Angeles — but you can compare any two cities in the database.
This is the tool you use before scheduling a call when you cannot remember whether New York is currently 5 or 6 hours behind London (it changes twice a year, on different dates in each country, which is why this is always confusing).
Meeting planner
The meeting planner goes further than a two-city comparison. You add multiple cities, and it shows you a grid of hours across all of them simultaneously, highlighting the overlap windows where everyone's working day intersects. For teams spread across three or more time zones, this is the only reliable way to find a meeting time without someone doing arithmetic at 11pm.
The meeting planner is particularly valuable for:
- Distributed engineering teams scheduling standups across US, European, and Asian offices
- Freelancers and consultants coordinating with international clients
- Agencies managing campaigns across multiple markets who need to know when to publish for each region
Countdown timer
The countdown timer lets you set a target date and time in any timezone and counts down to it in real time. Use cases range from product launch countdowns (shared via link) to personal deadlines, contract end dates, or event start times.
The shareable countdown link is the standout feature — instead of telling someone "the deadline is 3pm New York time", you share a countdown link that shows them exactly how long is left in their local context.
Trading hours
The trading hours tool shows the open and close times for major global financial markets — NYSE, NASDAQ, London Stock Exchange, Tokyo Stock Exchange, and others — in your local time. It accounts for daylight saving transitions automatically, which is where most static market hours references go wrong.
For anyone who trades equities, forex, or crypto across multiple markets, knowing exactly when the London session overlaps with New York, or when Asian markets open relative to your timezone, is fundamental. This tool updates automatically when any market's DST schedule changes.
Public holidays
The public holidays calendar covers national holidays for countries worldwide, showing which markets are closed, which teams are off, and which deadlines to avoid scheduling around. Useful for project managers coordinating deliverables across international teams, and for anyone who has accidentally scheduled a client call on a national holiday in their client's country.
Why "close enough" time is not good enough in 2026
For most casual use — scheduling a dinner, checking what time it is in Paris — an approximate world clock is fine. But there is a growing set of situations where the exact time matters:
Two-factor authentication and time-based tokens. TOTP codes (the six-digit codes generated by apps like Google Authenticator or Authy) are time-dependent. They are valid for 30-second windows calculated against UTC. If your device clock drifts significantly, your codes will be rejected. An atomic-synced clock reference like exact-time.now helps you verify whether your device is showing the right time.
Legal and contractual deadlines. "Submit by 5pm Eastern" means 5pm in the Eastern timezone, not 5pm wherever you are. Getting this wrong on a contract deadline, a tax filing, or a legal submission has real consequences.
Financial market timing. Options expire at specific times. Pre-market and after-hours sessions open and close on a fixed schedule. The exact-time.now trading hours tool makes sure you are never working from a static reference that is off by an hour due to a DST change that happened three weeks ago.
Security event timestamps. When reviewing server logs, access logs, or audit trails, timestamps need to be interpreted in the correct timezone. Knowing the exact current UTC time and how it maps to various local times is a basic operational need for anyone working in IT or security.
Cities covered worldwide
exact-time.now covers every major city across Africa, the Americas, Asia, Europe, and Oceania — from Addis Ababa to Zurich, with dedicated pages for each one showing local time, DST status, UTC offset, sunrise, and weather.
The city pages are also built for search: if you search "current time in Tokyo" or "what time is it in Dubai right now", exact-time.now is built to answer that question authoritatively, with accurate IANA-sourced data, rather than relying on an embedded widget from a third party.
exact-time.now and digital security: a connection worth making
It might seem strange to mention a world clock tool in the context of digital security. But the connection is real. Time is a foundational element of several security protocols:
Password manager time-based codes. Many password managers and two-factor authentication apps generate codes that depend on clock accuracy. A device whose clock is significantly off will generate codes that fail. Before assuming your authenticator app is broken, verifying the current atomic time at exact-time.now is a useful first step.
Certificate validity windows. SSL/TLS certificates have valid-from and valid-to dates. Systems with incorrect clocks will reject perfectly valid certificates or accept expired ones. Again, an authoritative time reference helps you rule out a clock problem when debugging connection issues.
Scheduled security tasks. Automated backups, password rotation reminders, and security scan schedules all depend on accurate time. exact-time.now is a quick way to verify that your system clock is aligned before you wonder why a scheduled task ran three hours late.
For the password side of the equation, PassLab handles generation — browser-based, zero-knowledge, cryptographically secure. For the time side, exact-time.now handles synchronisation. Together they cover two of the most common sources of avoidable security failures.
FAQs about exact-time.now
What is exact-time.now?
exact-time.now is a free world clock tool that shows the current local time in any city worldwide, synced to atomic clocks using official IANA timezone data. It also includes a time zone comparison tool, meeting planner, countdown timer, trading hours tracker, and public holidays calendar.
Is exact-time.now free?
Yes, completely free. No account, no subscription, no ads obscuring the content. Every tool on the site is available without any sign-up or payment.
How accurate is exact-time.now?
exact-time.now uses official IANA timezone data — the same authoritative source that powers major operating systems, programming languages, and servers. It updates automatically when timezone rules change anywhere in the world, making it more reliable than static world clock references that can lag behind DST transitions.
What cities does exact-time.now cover?
exact-time.now covers hundreds of cities across all continents, including all major global hubs in Africa, the Americas, Asia, Europe, and Oceania. Each city has a dedicated page showing live local time, UTC offset, DST status, sunrise and sunset, and weather.
Can I compare two time zones on exact-time.now?
Yes. The time zone comparison tool lets you see any two cities side by side with their current times shown simultaneously. Popular pairs like London vs New York and Tokyo vs London are pre-built, but you can compare any two cities in the database.
Does exact-time.now have a meeting planner?
Yes. The meeting planner lets you add multiple cities and shows a grid of hours across all of them, highlighting the windows where working hours overlap. It is the most reliable way to find a meeting time that works for a team spread across three or more time zones.
What trading hours does exact-time.now cover?
exact-time.now covers major global financial markets including NYSE, NASDAQ, London Stock Exchange, Tokyo Stock Exchange, and others. Open and close times are shown in your local timezone and update automatically for DST changes.
Can I share a countdown timer from exact-time.now?
Yes. The countdown timer generates a shareable link that shows your countdown to any target date and time, in any timezone. Anyone who opens the link sees a live countdown that reflects the remaining time from their own perspective.