Five stations along the North-South Line (NSL) from Admiralty to Yio Chu Kang will close earlier on Fridays and Saturdays, and open later on weekends from June 1 to July 1.
The stations are Admiralty, Sembawang, Yishun, Khatib and Yio Chu Kang, which will close at around 11pm on Fridays and Saturdays, and open at around 8am on Saturdays and Sundays.
Train operator SMRT said yesterday that the adjustment in operating hours is to facilitate maintenance and rectification works along the NSL.
But on June 15, 16 and 17, the trains will operate at normal hours. Services will also be extended on the eve of Hari Raya Puasa on June 14.
During the planned closures, commuters can still travel between Jurong East and Woodlands stations, and between Ang Mo Kio and Marina South Pier stations.
Shuttle bus service 10 will ply the stretch of the NSL between Woodlands and Ang Mo Kio stations. A direct bus service, Express 17, will operate from Woodlands to Bukit Panjang stations to connect commuters to the Downtown Line.
Timings of the first and last trains departing the affected stations will vary, said SMRT, which advised commuters to check the timings on the website and social media platforms.
On normal days, trains run from 5.30am to about midnight.
SMRT Trains chief executive officer Lee Ling Wee said engineering teams are "making good progress" on the renewal, maintenance and rectification works along the NSL and East-West Lines, thanks to the additional hours on weekends over the past six months.