About the Timezone Converter
What is this?
A time zone is a region that observes a uniform standard time for legal, commercial, and social purposes. The world is divided into 24 standard time zones, each roughly 15 degrees of longitude wide, corresponding to one hour of the Earth's rotation. This converter helps you find the corresponding local time across zones — essential for scheduling international meetings and travel.
How it is calculated
Time zones are expressed as offsets from Coordinated Universal Time (UTC). To convert, add or subtract the difference between the two zones. For example, if it is 14:00 UTC and you want the time in New York (UTC−5), subtract 5 to get 09:00. When daylight saving time is in effect, the offset changes — for instance, New York becomes UTC−4 in summer.
Reference ranges
Frequently asked questions
What is UTC and why is it used?
Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time. It is based on atomic clocks and does not observe daylight saving, making it a stable reference point.
Why do some countries not use daylight saving?
Countries near the equator have little variation in daylight hours, so daylight saving offers little benefit. Others have abandoned it due to energy-saving debates and health concerns about clock changes.
What is the International Date Line?
Running roughly along the 180° meridian, the International Date Line is where the calendar date changes. Crossing it westward adds a day; crossing eastward subtracts one.
Timezone Calculator
See the current time across world cities and convert times between zones.