NiftyKit

Time Zone Converter

Convert times between cities and time zones, with daylight saving built in.

By Updated

Runs in your browser. Your input is not uploaded.

Times around the world

    Type a city, country or abbreviation such as PST or CET, then choose from the list with the arrow keys and Enter.

    24-hour planner

    Each column is one hour of the day you chose, in the time zone you are converting from. Working hours (9:00 to 17:00) are bold with a bar, night hours are faded, and the time you chose is outlined. Choose an hour at the top to use it.

    How to use the time zone converter

    1. Choose a date and time, and the time zone it is in. It starts with the current time where you are.
    2. The same moment is shown for every place in the list, with the date, the offset from GMT and whether daylight saving is in effect.
    3. Add cities with the search box, or remove the ones you do not need. Use as ‘from’ converts from a different place instead.
    4. To plan a call, use the 24-hour planner to find hours that fall within working time for everyone.

    “+1 day” or “−1 day” next to a time means it is the day after or before the date you chose. Copy as textcopies every time in the list, ready to paste into an email or invitation.

    When the clocks change

    On the days the clocks change, some local times are unusual, and the converter tells you when this happens:

    • Times that do not exist. When the clocks go forward, an hour is skipped. In the UK, 01:30 on the last Sunday in March never happens. The converter moves such times forward by the length of the gap, to 02:30.
    • Times that happen twice. When the clocks go back, an hour repeats. In the UK, 01:30 on the last Sunday in October happens first in BST and again an hour later in GMT. The converter uses the first one.

    Time zones that are not whole hours

    Not every place is a whole number of hours from GMT. India is 5 hours 30 minutes ahead, Nepal 5 hours 45 minutes, Newfoundland 3 hours 30 minutes behind, and parts of Australia are 9 hours 30 minutes ahead. Kiribati’s Line Islands are 14 hours ahead, so they are a whole day ahead of Hawaii at the same moment. All of these are handled.

    Limitations

    • The time zone rules come from your browser and are updated with it. If a country changes its rules at short notice, an older browser may not know yet.
    • Times before 1970 can be less reliable, because historical records of local time are incomplete.
    • The planner assumes working hours of 9:00 to 17:00, Monday to Friday everywhere. It does not know about local weekends, lunch breaks or public holidays.
    • Abbreviations are shown only where one is in common use in English. Elsewhere you see the offset, such as GMT+4.

    Frequently asked questions

    Does the converter handle daylight saving time?

    Yes. It uses the time zone rules built into your browser, which record when each place changes its clocks, past and future. Countries change on different dates: the UK changes on the last Sundays of March and October, but the US changes on the second Sunday in March and the first Sunday in November. So for a few weeks each year London is 4 hours ahead of New York instead of 5. Pick the actual date of your call or meeting to get the right answer.

    What do abbreviations like PST, CET and IST mean here?

    Searching for an abbreviation finds the place it usually refers to, such as Los Angeles for PST. That place’s rules are then applied to your date, so in summer you see Pacific Daylight Time (PDT), which is almost always what people mean. Some abbreviations have several meanings: IST is used in India, Ireland and Israel, and CST in both the central US and China. All the meanings are listed, so choose the right city.

    What is the difference between GMT and UTC?

    For everyday use they are the same time. UTC (Coordinated Universal Time) is the world’s time standard, kept by atomic clocks. GMT is the time zone the UK uses in winter. In summer the UK uses British Summer Time (BST), which is one hour ahead of GMT and UTC.

    Can I save or share my list of cities?

    Yes. The page address changes as you add and remove time zones, so you can bookmark it or send it to someone. Only the time zone names are included, not the date or time. They are stored after the # in the address, which browsers never send to the website.