How many hours is the time difference between the United States and China?

The time difference between the United States and China is 12-13 hours.

1. When the United States implements daylight saving time, Beijing time is exactly 12 hours ahead of the United States Eastern (referred to as E.T.) time. During non-daylight saving time, Beijing time is 13 hours ahead of US Eastern Time.

2. The subtraction of the standard time (real-time zone number) of the two time zones is the time difference. The time zone with the larger value is earlier. The United States observes daylight saving time from the second Sunday in March to the first Sunday in November each year, and daylight saving time is one hour ahead of normal time.

China-US time difference conversion

The United States spans six time zones, each time zone differs by 1 hour. The mainland is 4,517 kilometers from the east coast to the west coast and is divided into four time zones; Alaska and The outer islands of Hawaii are divided into two time zones.

Winter time difference (slower than Beijing time): The Eastern Time Zone is 13 hours behind Washington, DC, New York, Boston, Atlanta, Philadelphia, Miami, etc. The Central Time Zone is 14 hours behind Chicago, St. Louis, New Orleans, Houston, etc. Mountain time zone, 15 hours slower, Denver, Salt Lake City, Phoenix (Pacific time zone implements daylight saving time), etc. Pacific time zone, 16 hours slower, Los Angeles, San Francisco, San Diego, Las Vegas, Seattle, etc. Alaska time zone is 18 hours behind, Hawaii time zone is 18 hours behind.

The daylight saving time difference is 1 hour ahead (than winter time):

The time of year in the United States is divided into summer time and winter time. The start time of daylight saving time is: March every year The second Sunday, the start of winter time: the first Monday in November each year.

One of the things to note when traveling in the United States: Preparation matters

1. Most American hotels do not provide toothbrushes, toothpaste, slippers and other related toiletries, so please prepare them yourself.

2. Please bring appropriate clothing, preferably comfortable, light and casual clothes. In summer, bring a jacket with you in case the evenings get cooler. The winter weather in the eastern United States is cold, so please keep warm. In addition, because the sunshine in the United States is very strong, you can prepare parasols, sunshade hats, sunglasses and sunscreen lotion and pay attention to sun protection.

3. Since the U.S. Customs has strict restrictions and regulations on the entry of agricultural products, please be careful when preparing food and do not bring fresh or pickled animals such as meat, eggs, vegetables, and fruits. When bringing plant products into the country, any food must be declared at customs regardless of the type. If you have brought any food, it is recommended to tell the tour leader before entering customs for your reference.

4. If you have emergency medicines for travel, please try to bring packaged medicines, preferably with English names, and store the medicines in a unified way. It is recommended that you inform the tour leader before entering customs for your reference. .

U.S. Travel Precautions 2: Entry and Exit

1. Entry Instructions:

According to U.S. immigration law, all U.S. land ports, airport ports or seaports Everyone entering the port must be inspected. If you take a plane to the United States, the service staff on the plane will issue you an I-94 form, the Arrival/Departure Record (Arrival/Departure Record). This form records the immigrant's personal information and address in the United States.

There are four main inspection contents at the US port of entry:

1. Public hygiene; 2. Immigration status; 3. Customs inspection; 4. Agricultural inspection.

These four inspections may be conducted by one officer or by multiple officers.

On the way to the United States, flight attendants will distribute I-94 forms to passengers for them to fill out. Passengers fill in basic personal information and address in the United States on this form.

At the port of entry, the immigration officer will check the documents and valid visas held by the immigrants, review the reasons for traveling to the United States, and decide whether to allow the inspected person to enter the United States and how long he can stay in the United States. If entry is allowed, the immigration officer will stamp the immigrant's I-94 form and indicate the date of entry, visa status, and length of stay in the United States.

It should be noted that holding a valid U.S. visa does not guarantee entry. The immigration officer at the U.S. port will ultimately decide whether to allow you to enter. The I-94 form reviewed and approved by the port immigration officer is proof of legal entry into the United States and needs to be properly kept. If lost or damaged, you must report it to the nearby immigration office in time and apply for a reissue. Form I-94 must be returned to the port immigration officer when leaving the United States.

The passport must be valid for at least six months longer than the intended period of stay in the United States.

2. Safety regulations

To improve passenger safety, the United States has restrictions on liquids, aerosols and hair sprays carried on inbound and outbound flights. These regulations are necessary to protect you from the threat of liquid explosions.

Liquid, aerosol or hairspray containers in hand luggage must be equal to or less than 100 ml in size. All containers must be sealed in clear one-liter plastic bags, and each person is limited to one plastic bag. Travelers are allowed to use ziplock bags with a capacity of one liter or less.

Prescription medications can still be carried through security. Passengers are allowed to bring baby products and prescription drugs for use on the flight, but you may be asked to show proof of need.

When you arrive at security, you must hand over any liquids, sprays and hairsprays in excess of 100ml that you still have with you, including duty-free items.

The new regulations will also add random body searches to the security inspection process.

Have plastic bags ready before check-in so you have time to put any overly large containers in your checked luggage.