Gas Day

What Is Gas Day?

October 31st is "Gas Day" in Japan. It was established in 1972 by the Japan Gas Association, which works to promote the sound development of the city gas industry. The date commemorates the lighting of Japan's first gas lamps on Bashamichi Street in Yokohama on the 29th day of the 9th month of 1872 (Meiji 5) -- October 31st on the modern calendar.

The First Lights on Yokohama's Bashamichi

The day was established exactly 100 years after the gas lamps were first lit. Its purpose is to help people understand the role of the city gas industry and to share how to use gas safely and efficiently.

• Established by: the Japan Gas Association
• Year established: 1972, the 100th anniversary of the first gas lamps
• Origin of the date: Japan's first gas lamps were lit on Bashamichi, Yokohama, on October 31, 1872 (modern calendar)
• Purpose: to convey the role of city gas and promote its safe and efficient use

A Few Facts About LNG, the Source of City Gas

Today, city gas is made mainly from natural gas, whose main component is methane. When cooled to minus 162°C, natural gas becomes a liquid -- LNG, or liquefied natural gas -- shrinking to about 1/600 of its volume as a gas. Taking advantage of this, Japan imports almost all of its natural gas as LNG by tanker. It also emits less carbon dioxide when burned than coal or oil.

Tips for Marking This Day

• Inspect and clean around your gas stove and water heater
• Check where your gas leak alarm is installed and when it expires
• Learn about the Meiji-era streetscape of Yokohama's Bashamichi, including its gas lamps
• Before it gets cold, review how you use heating and hot water to save energy

From 150-Year-Old Lamps to Everyday Life

Gas began as light for city streets and is now essential energy for cooking, baths, and heating. October 31st is a day to think about its convenience and safe use.