Every Time Zone Converter (2024)

FAQs

Are there 40 time zones in the world? ›

Other nations, such as Nepal, use quarter-hour deviations. This means that there are approximately 40 time zones rather than 24.

There are 24 regions (Time Zones) around the world with a time difference of one hour. This system has been adopted internationally by setting the total time difference around the world as 24 hours. Further, Daylight Saving Time (DST) is individually adopted in countries and regions.

In an ideal world, each time zone would cover 15 degrees of longitude, with a time difference of one hour to adjacent time zones. This would bring the total number of time zones to 24. However, the International Date Line (IDL) creates 3 more.

In May 1996, the government, faced with a major electricity crisis, changed standard time to GMT+6:30 then readjusted it to the more convenient GMT+6 a few months later. Some conservative Sri Lankans never accepted the change. This resulted in a hilarious situation of 'old time' and 'new time' coexisting for a decade.

So why are some cities 30 or 45 minutes off? That has largely to do with the politics in each of those places. For example, in New Delhi, India, they found themselves halfway between two meridians, and therefore decided to be 30 minutes between each, as opposed to adopting one time or the other.

Ideally, time zones would be slices of Earth's surface 15 degrees of longitude wide that keep the same time. However, some countries and parts of countries have decided that being within a specific time zone is not preferable and have chosen offsets of 30 minutes or even 45 minutes.

The country that is 24 hours ahead of the USA is Tonga [1]. Tonga is located in the Pacific Ocean and is in the UTC+13 time zone, making it the first country to greet each new day.

If we look at a time zone map, we see that the time zone 12 hours ahead of EST is ICT, a.k.a. Indochina Time [Zone]. From north to south, the countries located in the ICT are Russia, Mongolia, Myanmar, Vietnam, Laos, Thailand, Cambodia, and Indonesia.

The 480 area code is located in Arizona, which is in the (UTC-7) time zone. 480 serves the Maricopa and Pinal counties, as well as cities like Pheonix, Chandler, and Scottsdale, in addition to Mesa.

How many time zones does China have? ›

China has one time zone. It is officially called China Standard Time (CST). It is 8 hours ahead of Coordinated Universal Time (UTC+08:00). There is no daylight saving time.

Timezone Offset Abbreviations

For example, PST (Pacific Standard Time) refers to the US/Pacific timezone, which has an offset of –480 minutes to UTC.

There are actually six time zones in the USA. The four main ones are Eastern, Central, Mountain, and Pacific Standard Time. The two others are Alaska Standard Time and Hawaii-Aleutian Standard Time, observed only by Alaska and Hawaii respectively.

To split all regions of the Earth into 24 time zones, we divide longitude by 15 degrees to calculate the exact time zone in hours. For instance: At 75º west longitude, we calculate the time zone by dividing 75 degrees by 15 degrees.

They are based on longitude and defined by Earth's rotation, which completes a full circle (360 degrees) each day (24 hours). Each hour then, Earth rotates through 360/24 = 15° of longitude: the width of one time zone.

We all have 24 hours in our day, but there are 38 time zones observed across the world offset from Coordinated Universal Time (UTC), and each country gets to pick the one it aligns with.

UTC is a time standard, not a time zone. No country “uses” UTC, but every country's time is based on UTC. Today, there are 37 time zones in use, and they often don't match up with their actual lines of longitude, but follow national and international borders.

There are a total of 41 different time zones, or offsets from Coordinated Universal Time (UTC), including UTC itself, in use each year. The total is 40 if you don't count UTC-12, the time zone of Baker and Howland Islands, which are officially uninhabited.

There are 24 time zones currently recognized on E...