Circle line train services will end at 11pm from Sundays to Wednesdays, Jun. 15 to Jul. 30, 2025

Circle Line train services will end earlier at 11pm from Sundays to Wednesdays from Jun. 15 to Jul. 30, 2025.

Services on Thursdays, Fridays, and Saturdays will remain unchanged.

This is to prepare for the opening of the Circle Line Stage 6 (CCL6) in the first half of 2026, which will close the loop for the Circle Line by connecting HarbourFront station to Marina Bay station, according to a joint news release by LTA and SMRT on May 22.

LTA and SMRT recommended that commuters plan their journeys in advance and rely on alternative routes via other MRT lines and bus services to reach their destinations.

More details can be found on LTA’s MyTransport.SG mobile app and LTA’s and SMRT’s social media platforms.

Posters will be put up at all Circle Line MRT stations and at stations that interchange with the Circle Line to alert commuters to the service adjustments.

Station staff will also be deployed at affected stations to provide assistance during the service adjustment period, the organisations said.

"We seek commuters’ understanding and patience during this period. These temporary service adjustments are necessary as we prepare for the opening of CCL6, so that there is sufficient time to conduct thorough and rigorous testing to ensure the safety of our commuters," said LTA and SMRT.

They added that the works will bring them closer to the completion of the CCL6 extension, which will enhance connectivity, shorten travel times, and bring greater convenience to commuters.

Dates affected

Train operations along the Circle Line will end at 11pm at all stations on the following dates:

June 2025

• Jun. 15 (Sunday) to Jun. 18 (Wednesday)
• Jun. 22 (Sunday) to Jun. 25(Wednesday)
• Jun. 29 (Sunday) to Jul. 2 (Wednesday)

July 2025

• Jul. 6 (Sunday) to Jul. 9 (Wednesday)
• Jul. 13(Sunday) to Jul. 16 (Wednesday)
• Jul. 20 (Sunday) to Jul. 23 (Wednesday
• Jul. 27 (Sunday) to Jul. 30 (Wednesday)

Details for the subsequent service adjustments will be shared at a later date.

Facilitated work needed for service adjustment

The facilitated work will help renew the train line's Integrated Supervisory Control System (ISCS), ensuring system compatibility with the new stretch of the Circle Line.

LTA and SMRT explained that the ISCS monitors and manages the systems on the CCL, including power supply, communications, and station facilities.

It also supports communications between stations, control centres, and trains.

The current system has been in use since the CCL began operations in 2009 and needs to be renewed to ensure it is compatible with the new CCL6 system, they noted.

There will also be further adjustments that will be carried out by LTA and SMRT from September to December 2025, in order to complete systems integration testing across the entire CCL and ensure that the CCL6 stretch is well integrated with the existing CCL.

Top image via Google photos