Free tool
Time Zone Converter for Meetings Across Many Cities
Choose a date and a time in one place and the page shows that moment in every city on your list. A strip under each city shows the next and previous twelve hours, so you can spot a time that works for everyone.
The strip under each city shows 12 hours either side of the chosen time: green is 9 to 5 there, dark is night. Click the strip to move the time by that many hours. "Use" sets the time from that city.
Time zones come from your browser's own list (the IANA time zone database), so daylight saving rules are current for the date you pick.
Your list of cities is kept in this browser. Time zone data comes from your browser, and nothing you enter is sent anywhere.
Setting up a call with people in different countries
The hard part of a remote call is rarely the arithmetic. It is finding a slot that is not midnight for someone. This page starts with five places, your own and a few common ones, and lets you add more by typing a city, a country or a short name such as PST. Press Now to start from the current moment, or choose a date and time in the Time in menu's place.
Each row gives the local time and day in that city, its offset from UTC, the gap from the first city on the list and a tag: Working hours for 9 to 17, Night for the late and early hours and Off hours for the rest. When a place falls on another date, the row says next day or day before.
If a country has several zones, such as Brazil, the page asks you to name a city instead of choosing for you.
Using the strips to find a fair time
Under each city is a strip of 24 small blocks. The middle block is the time you chose. Green blocks are working hours there, dark blocks are night. Line the strips up by eye and look for a column that is green or plain in every row.
- Click a block on any strip to move the chosen time by that many hours. The status line says how far it moved.
- Press Use on a city to make it the base, so the date and time boxes read in that city.
- Press the cross on a row to remove a city.
- Tick the 24-hour clock box to switch between a 12-hour and a 24-hour display.
Be aware that the working hours tag is a fixed 9 to 17 rule. It does not know about lunch, local holidays or a week that starts on a different day.
Sharing the result
| Button | What you get |
|---|---|
| Copy all times | One line per city with weekday, date, time and UTC offset, ready for a message |
| Copy a link | A web address that carries the date, time, base city and your list of places |
| Add to calendar (.ics) | A one hour event file that calendar apps can open |
The event file is named Meeting and lists the city times in its description. When you open it, your own calendar shows the event in your own zone. If you send the link to a colleague, they see the same list of cities and the same moment.
Daylight saving and the odd hour
The page uses your browser's built-in time zone data, so each city follows its own daylight saving rules for the date you picked. Pick a date in a different month and the offsets can change, which is the point: a call booked three months ahead may have a different gap than a call today.
On the day clocks change, one local time may not exist, or may happen twice. The page tells you when that is the case. If a time is skipped, it shows the same moment as the nearest valid time. If a time repeats, it says which of the two it used.
Distributed teams also need clear rules about when their site is updated and who is on call. Our website maintenance cost guide explains how support hours and response windows are usually set out.
Frequently asked questions
How do I add a city that is not on the list?
Type a city, a country or a short name in the box under the rows and choose from the suggestions. If the country has several zones, the page asks for a city.
Does it handle daylight saving time?
Yes. It uses the time zone data in your browser, applied to the date you pick, so each city follows its own rules for that day.
What do the green blocks mean?
They mark hours between 9 and 17 in that city. Dark blocks mark night. Both are fixed rules, not a view of anyone's real calendar.
Can I send my result to someone?
Yes. Copy all times gives you plain text, and Copy a link gives you an address that opens the same list and time for the other person.
Why does a time say it happens twice?
On the day clocks go back, one hour is repeated. The page tells you which of the two it used so you can choose the other if you need it.
Is my list of cities stored anywhere?
It is kept in this browser on your device so it is there on your next visit. It is not sent to any server.
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