What time is it there, right now?
A glance at the World Clock — or at a widget, without unlocking anything. Local time, day of week, GMT offset and whether the sun is up.
World clock · Converter · Map · Widgets
What time is it there?
And when are you both awake?
Timezone keeps every city you care about on one screen, converts any moment between them, and draws the real day/night line across the world as it moves. 325 cities, on your iPhone, with no connection needed.
--:--:--
UTC now
--:--:--
your zone · GMT
Three questions
Every time-zone problem is one of these three.
Most clock apps answer the first one. Timezone is built around all three.
If I pick this moment, what time is it for them?
The Converter takes one date and time in one city and shows the same instant everywhere else, including whether it lands on another day.
When are we both awake?
The hard one. Timezone finds the next window where both cities are inside your waking hours, and shows it on the map and the timeline.
World Clock
Your cities, ordered the way you think about them.
One primary city sits at the top at full size — usually home, or wherever you are right now. Everything else lists below it, in the order you put them.
- 325 cities with country, flag and IANA time zone, searchable by local name or alias — “Praha” finds Prague, “Central European Time” does too.
- Every time zone on earth is reachable. The catalog covers all 418 zones in the IANA database by behaviour, including the quarter-hour ones — Chatham at GMT+12:45, Eucla at +8:45, Kiritimati at +14.
- Sun or moon on every row, computed from the city’s real coordinates rather than a rough guess at office hours.
- Reorder by dragging. The list is yours; nothing re-sorts itself behind your back.
- 12-hour or 24-hour, set once in Settings and used everywhere including the widgets.
World Map
Watch daylight move, then scrub it forward.
The map draws the actual solar terminator — the line between day and night — from the sun’s declination and the equation of time. Drag the slider and the whole world moves with it, cities and all.
- Every saved city pinned with its local time at the moment you’ve scrubbed to.
- A shared-hours badge showing the overlap window between your cities at a glance.
- Tap “Now” to snap straight back to the present.
- The same map runs in a widget, so daylight sweeps across your Home Screen too.
Converter
Pick a moment. See it everywhere.
Choose a date and time in one city and read it off in all the others — with Today, Yesterday or Tomorrow spelled out, because that is the part everyone gets wrong.
- A 24-hour timeline per city with a marker you can drag anywhere, shaded by that city’s own sunrise and sunset.
- Half-hour and quarter-hour zones handled exactly — Kathmandu at GMT+5:45 and Mumbai at GMT+5:30 are not rounded to something tidier.
- Daylight saving transitions are real, not assumed. The app scans minute boundaries, so a conversion across a DST change lands on the right hour.
- Swap the direction in one tap, and reorder the destination list by dragging.
Widgets
Most of the time, you never open the app.
Three widget families, on the Home Screen and the Lock Screen.
Privacy
There is no server. There is no account.
Timezone has no networking code in it at all. The city catalog, the map and the solar maths are compiled into the app, so it works on a plane, in a tunnel, and on a phone in airplane mode — and there is nowhere for your data to go.
- No account, no sign-in. Open it and use it.
- No location permission. The app never asks, because it never uses it.
- No analytics, no tracking, no ads. Nothing is measured or sold.
- Your cities stay on your device, shared only with the app’s own widgets.
325
Cities built in
21
Languages
3
Widget families
0
Network requests
EnglishالعربيةČeštinaDeutschEspañol FrançaisBahasa IndonesiaItaliano日本語한국어 NederlandsPolskiPortuguês (BR)РусскийSvenska ไทยTürkçeУкраїнськаTiếng Việt简体中文繁體中文
Reading
Time zones, written down properly.
Every figure on these pages is computed from the IANA time zone database at build time — not typed in — so the half-hour zones and the daylight-saving edges are right.
Web Tools
Tools
Live second-exact UTC clocks, multi-city awake overlap calculators, and digital tachograph compliance tools.
67+ guidesGuides
EST vs EDT, PST to EST, IST to EST, what daylight saving actually changes, and the odd zones that break whole-hour maths.
29+ scenariosScenarios
The standup somebody always takes at 6am, the client who books you at dinner, the birthday wished a day late. Situations, not queries.
60 conversionsConvert
Every working hour across the common zone pairs, each with both halves of the year, the date shift, and the next clock change that moves it.
Timezone: World Clock Widget
Time Zone Converter, Map & UTC. For iPhone, iOS 16.0 or later.