How to convert time zones
Choose cities and a date
Start with Your time, then add a city or an IANA zone such as America/New_York. Search results include the country or US state to distinguish names. Abbreviations can be ambiguous: IST offers India, Israel and Ireland. Select the region you mean rather than assuming one universal offset.
Change the date or time in any row. Every other row represents the same instant. A day label compares that row’s calendar date with the first row, so +1 day means the following date. Now returns to the current moment; it does not keep ticking.
How to find a meeting time across time zones
Set your working hours and compare the hour strips below the rows. A filled circle marks a time inside working hours for everyone; a half circle means it is a working hour only in that city. If there is no common hour, try another date, remove a city or discuss a wider working window.
Copy link preserves the rows, selected instant, display format and working hours. Copy as text creates a dated summary suitable for an invitation. Both provide selectable text if clipboard access is unavailable. Double-check the date before sending an invitation across the international date line.
EST vs. EDT
Eastern Standard Time is UTC−5; Eastern Daylight Time is UTC−4. A city zone such as America/New_York follows its seasonal rules. Searching EST or EDT here selects that city zone, not a fixed offset. During the fall overlap, choose the first or second occurrence explicitly. During a spring gap, the page offers the nearest valid minute instead of silently changing your entry.
UTC vs. GMT
UTC is the global reference for civil time. GMT is a time zone with zero offset; both show the same clock time here. IANA Etc/GMT offset names have reversed signs: Etc/GMT+5 means UTC−5. Search results show that offset to prevent confusion.
When do the clocks change?
Under the US daylight saving rules published by NIST, clocks change on the second Sunday in March and the first Sunday in November. The European Commission’s summertime rules use the last Sundays in March and October. These different schedules can briefly change the usual difference between cities.
US time zones
The United States spans several zones, including Alaska and Hawaii. Most of Arizona does not observe daylight saving time; the Navajo Nation does. Hawaii does not observe it either, as the NIST source explains. Phoenix, Honolulu and Anchorage are separate choices in this converter. Use the actual destination rather than a state-wide assumption.