(Video) Tune in to TST clock tower's first ringing in seven decades

The Hong Kong Clock Tower bell in Tsim Sha Tsui rang again after 71 years, and it will chime every hour, on the hour, from Thursday evening. 

Hundreds of people gathered around the tower at 6pm Thursday, excited to witness the historic moment. Following a countdown by fans, it chimed six times -- which told the public that it was 6pm. 

But those who missed it don't need to worry -- the tower will continue to chime every hour from 8am to midnight. 

The first peal was heard in March 1921, which also marked when the Clock Tower first began operating as part of the former Kowloon-Canton Railway Kowloon Terminus.

But the bell stopped ringing in 1950 as the clocks and chime had gone out of synchronization due to the installation of four motors -- one for each clock.

The bell now sits at the bottom of the tower, on some railroad ties that support it.

Built with red bricks and granite in the Edwardian Classical Revival style, the 44-meter high Clock Tower was surmounted by a seven-meter-tall lightning rod. The upper part of the tower is an octagonal domed belfry built of red brickwork, which contrasts with the white-painted classical features of the scroll-shaped buttresses, columns and cornices.

It was declared a monument in 1990.

The bell in the Clock Tower had been reporting time with its distinctive chime since March 1921, six years after the Clock Tower was built in 1915.

The bell was dismantled from the Clock Tower in 1976. It was displayed at the concourse of Hung Hom Station, before being moved to Sha Tin Station in 1984. It was further moved to the Kowloon-Canton Railway Corporation House in Fo Tan in 1995.

In 2010, the Bell was donated to the government, in celebration of the centenary of Hong Kong railway services.

The ringing on Thursday was livestreamed on the “Centenary of the Bell” Facebook page -- which was created by the department in celebration of the bell's 100th anniversary -- and the “LCSD Plusss” Facebook page.