The time right now, around the world
- Los Angeles–:––
- New York City–:––
- São Paulo–:––
- London–:––
- Lagos–:––
- Dubai–:––
- Mumbai–:––
- Singapore–:––
- Tokyo–:––
- Sydney–:––
Each bar is that city's day from midnight to midnight, shaded by where the sun really is there today. The red line is now.
Who's awake right now
The shaded half of the world is in night. Cities on your UTC offset are highlighted; pick another offset to compare, or open the full time zone map.
Tools for working across time zones
37 free tools. Each one runs in your browser, so nothing you enter is sent anywhere.
Clocks and live time
Watch the time in several places at once.
- Live World Clock Dashboard
Track any set of cities side by side, with day and night at a glance.
- World Time Zone Map
Every major city by its UTC offset, with the local time on hover.
- Day / Night Terminator Map
Watch the sunlit half of Earth sweep across the globe in real time.
- Analog & Digital Multi-City Clocks
Classic dials and crisp readouts for every timezone you follow.
- Sunrise, Sunset & Twilight Tracker
Golden hour, blue hour, and full darkness for anywhere on Earth.
- DST Transition Tracker
Know exactly when the clocks change, city by city.
- 24-Hour Military Time Clock
Unambiguous global time in a strict 24-hour format.
Plan across time zones
Find an hour that works for everyone.
- Meeting Overlap Finder
Line up several timezones and see the hours everyone is awake.
- Team Availability Visualizer
Map working hours across a distributed team in one view.
- Drag-and-Drop Schedule Slider
Scrub a proposed time and watch every local clock respond.
- Business Hours Intersection
Calculate the exact window where offices overlap.
- Calendar Export (ICS)
Send an invite with the timezone baked in, not guessed.
- Best Time to Post
Reach each audience when they are actually online.
Convert times and dates
Turn a time in one place into a time in another.
- Point-to-Point Converter
PST to IST and back, with the offset spelled out.
- UTC / GMT Offset Calculator
A clean reference for every offset from zero.
- Flight Arrival Calculator
Add a flight duration and land on the right local time.
- Market Trading Hours
When each exchange opens, in your own timezone.
- Timezone Abbreviation Lookup
Resolve EST, CEST, AEST and the rest to real offsets.
- Time Difference Calculator
The delta between any two places, no mental math.
For developers
Timestamps, formats, cron and logs.
- Unix Epoch Converter
Seconds, milliseconds, microseconds — decoded instantly.
- ISO 8601 Generator & Decoder
Build and read strict timestamps without guesswork.
- tzdata Explorer
Browse the IANA timezone database and its history.
- Cron Timezone Predictor
See when a cron expression actually fires, per zone.
- Server Log Translator
Convert log timestamps to the zone you think in.
- RFC 3339 / 2822 Formatter
Emit the exact timestamp format an API expects.
Timers and countdowns
Count up, count down, take breaks.
- Multi-Zone Alarm Clock
Wake to a time that means the same thing everywhere.
- Countdown to Global Events
Share a link that counts down to the same moment everywhere.
- Team Pomodoro Timer
Focus sprints synchronized across a remote team.
- Millisecond Stopwatch
Precise timing with lap splits and keyboard control.
- Interval & Tabata Timer
Custom work-and-rest rounds for training or focus.
- Meeting Cost Calculator
Watch the price of a meeting climb minute by minute.
Sun, moon and sky
Sunrise, moon phases, solstices and solar time.
- Moon Phase Tracker
The lunar calendar and tonight's phase, wherever you are.
- Solar Noon & True Solar Time
When the sun is highest — not what the clock claims.
- Equinox & Solstice Countdown
The turning points of the year, counted to the second.
- Golden Hour Calculator
Plan the shot around the light, anywhere on the map.
- Decimal & Swatch Time
French Republican metric time and Internet .beats.
- Binary & Hex Color Clock
Read the hour in bits, or as a shifting swatch of color.
What time is it in…
Each city page has the live local time, its time zone, the next clock change, sunrise and sunset, and the difference from your own clock. Or browse all 244 countries.
How the times are worked out
Every clock, conversion and countdown here is calculated by your own browser, using the IANA time zone database built into it — the same rules your phone and computer use. Each city follows its own zone, so the weeks when one region has changed its clocks and another hasn't come out right. Nothing you enter is sent to a server, there is no location prompt and no account; the privacy page lists every request the site makes.
Once a page has loaded, the time zone rules are already on your device, so clocks keep ticking and converters keep working offline.
City data comes from GeoNames, which gives each of the 34,043 places its own coordinates and time zone rather than a country-wide guess. That matters more than it sounds: the United States spans six zones, Russia eleven, and Australia splits by state, so two cities in one country can be hours apart and change their clocks on different days.
Common questions
- Is worldclock.tools free?
- Yes — every one of the 37 tools is free, with no account, no sign-up and no paywall. There are no ads. The only third-party script is Google Analytics, used to count page views; nothing you enter into a tool is ever sent anywhere.
- How accurate are the clocks?
- Every clock and conversion is computed in your browser from your device's clock and the IANA time zone database that ships with it. That database is the same one operating systems use, so daylight-saving rules are current and each city is handled by its own zone rather than a country-wide assumption. Accuracy is therefore limited only by how well your own device clock is synchronised.
- Does the site send my data anywhere?
- Nothing you type into a tool. Every calculation runs locally in the page, there is no geolocation prompt and no account, and saved boards and preferences live in your browser's local storage rather than on a server. City search downloads the city list once as a file and searches it on your device, so what you type stays there too. The one outside service is Google Analytics, which records anonymous page views and sets its own cookies.
- How many cities are supported?
- 34,043 cities across 244 countries and territories, from the GeoNames geographical database. Each carries its own coordinates and IANA time zone, so local time, daylight saving and sun times are computed from real data for the specific city rather than for its country.
- Why does the time difference between two cities change during the year?
- Because each zone follows its own daylight-saving rule and they change on different dates. New York and London are normally five hours apart but four for a couple of weeks in March, when the United States has moved its clocks and Europe has not. Between hemispheres the swing is larger still, because the two sides move in opposite directions.
- Can I use these tools offline?
- Largely, yes. Once a page has loaded, the clocks, converters and timers keep working without a connection because the computation and the time zone rules are already in your browser. Searching beyond the 1,000 largest cities needs the network once, to download the full city list.