Revisions to Operating Hours of City Direct Services

The operating hours for public bus services in Singapore are frequently reviewed by the Land Transport Authority (LTA). These revisions to operating hours often occur in tandem with route amendments to bus services, as well changes to last train timings at MRT stations (for residential feeder bus services), or simply due to evolving passenger demand on bus services over the years.

This article provides a chronology of revisions to operating hours for operational City Direct bus services in Singapore.


Tower Transit City Direct Bus Service 651 (since 2 Sep 2013)

Route Chronology of Operating Hours
Jurong West Ave 3 β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Jurong West Ave 3 (PM Peak)
  • Jurong West Ave 3: 07:30, 07:45 (Mon-Fri)
  • Central Blvd: 18:15, 18:30 (Mon-Fri)

SBS Transit City Direct Bus Service 652 (since 6 Jan 2014)

Route Chronology of Operating Hours
Upp Thomson Rd β†’ Shenton Way (AM Peak)
Anson Rd β†’ Upp Thomson Rd (PM Peak)
  • 2014 (6 Jan):
    • Upp Thomson Rd: 07:35, 07:45 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2014 (17 Mar):
    • Upp Thomson Rd: 07:30, 07:40, 07:50 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2014 (14 Jul):
    • Upp Thomson Rd: 07:30, 07:36, 07:43, 07:50 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2015 (19 Jan):
    • Upp Thomson Rd: 07:25, 07:31, 07:37, 07:43, 07:50 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2018 (25 Jun):
    • Upp Thomson Rd: 07:25, 07:30, 07:35, 07:40, 07:45, 07:50 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2020 (6 Jan):
    • Upp Thomson Rd: 07:25, 07:33, 07:41, 07:50 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)

Tower Transit City Direct Bus Service 653 (since 13 Jan 2014)

Route Chronology of Operating Hours
Hume Ave β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Hillview Ave (PM Peak)
  • 2014 (13 Jan):
    • Hume Ave: 07:25, 07:40 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2014 (31 Mar):
    • Hume Ave: 07:20, 07:30, 07:40 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2014 (4 Aug):
    • Hume Ave: 07:20, 07:26, 07:33, 07:40 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2015 (16 Mar):
    • Hume Ave: 07:15, 07:21, 07:27, 07:33, 07:40 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2015 (29 Jun):
    • Hume Ave: 07:15, 07:21, 07:27, 07:33, 07:40 (Mon-Fri)
    • Central Blvd: 18:10, 18:20, 18:30 (Mon-Fri)
  • 2015 (26 Oct):
    • Hume Ave: 07:15, 07:21, 07:27, 07:33, 07:39, 07:45 (Mon-Fri)
    • Central Blvd: 18:10, 18:20, 18:30 (Mon-Fri)
  • 2017 (13 Apr):
    • Hume Ave: 07:15, 07:25, 07:35, 07:45 (Mon-Fri)
    • Central Blvd: 18:15, 18:30 (Mon-Fri)
  • 2024 (15 Apr):
    • Hume Ave: 07:15, 07:25, 07:35, 07:41, 07:48 (Mon-Fri)
    • Central Blvd: 18:15, 18:30 (Mon-Fri)

SBS Transit City Direct Bus Service 654 (since 20 Jan 2014)

Route Chronology of Operating Hours
Anchorvale St β†’ Shenton Way (AM Peak)
Anson Rd β†’ Anchorvale St (PM Peak)
(20 Jan 2014 – 8 Nov 2024)
  • 2014 (20 Jan):
    • Anchorvale St: 07:35, 07:50 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2014 (14 Jul):
    • Anchorvale St: 07:35, 07:45, 07:55 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2015 (2 Nov):
    • Anchorvale St: 07:30, 07:38, 07:47, 07:55 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2016 (13 Jun):
    • Anchorvale St: 07:30, 07:36, 07:42, 07:49, 07:55 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2018 (12 Jun):
    • Anchorvale St: 07:30, 07:35, 07:40, 07:45, 07:50, 07:55 (Mon-Fri)
    • Anson Rd: 18:20, 18:27, 18:35 (Mon-Fri)
Anchorvale Cres β†’ Shenton Way (AM Peak)
Anson Rd β†’ Anchorvale Cres (PM Peak)
  • Anchorvale Cres: 07:20, 07:30, 07:35, 07:40, 07:45, 07:50, 07:55, 08:00 (Mon-Fri)
  • Anson Rd: 18:10, 18:20, 18:30, 18:40 (Mon-Fri)

SBS Transit City Direct Bus Service 655 (since 17 Feb 2014)

Route Chronology of Operating Hours
West Coast Rd β†’ Marina Blvd (AM Peak)
Central Blvd β†’ West Coast Rd (PM Peak)
  • 2014 (17 Feb):
    • West Coast Rd: 07:35, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2023 (9 Oct):
    • West Coast Rd: 07:30, 07:40, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)

Tower Transit City Direct Bus Service 656 (since 17 Feb 2014)

Route Chronology of Operating Hours
Canberra Rd β†’ Shenton Way (AM Peak)
Anson Rd β†’ Canberra Rd (PM Peak)
  • 2014 (17 Feb):
    • Canberra Rd: 07:25, 07:40 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2014 (10 Mar):
    • Canberra Rd: 07:20, 07:30, 07:40 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2014 (14 Jul):
    • Canberra Rd: 07:20, 07:26, 07:34, 07:40 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2017 (17 Apr):
    • Canberra Rd: 07:20, 07:30, 07:40 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)
  • 2020 (2 Jun):
    • Canberra Rd: 07:20, 07:40 (Mon-Fri)
    • Anson Rd: 18:10, 18:25 (Mon-Fri)

Tower Transit City Direct Bus Service 657 (since 24 Feb 2014)

Route Chronology of Operating Hours
Jurong West Ave 1 β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Jurong West Ave 1 (PM Peak)
  • Jurong West Ave 1: 07:30, 07:45 (Mon-Fri)
  • Central Blvd: 18:15, 18:30 (Mon-Fri)

SBS Transit City Direct Bus Service 660 / 660M (since 23 Jun 2014)

Route Chronology of Operating Hours
Buangkok Green β†’ Shenton Way (AM Peak)
Anson Rd β†’ Buangkok Green (PM Peak)
(23 Jun 2014 – 8 Nov 2024)
  • 2014 (23 Jun):
    • Buangkok Green: 07:35, 07:50 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2014 (1 Sep):
    • Buangkok Green: 07:30, 07:40, 07:50 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2015 (11 May):
    • Buangkok Green: 07:30, 07:37, 07:44, 07:50 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2018 (25 Jun):
    • Buangkok Green: 07:30, 07:35, 07:40, 07:45, 07:50 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2019 (2 Jan):
    • Buangkok Green: 07:30, 07:36, 07:43, 07:50 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2023 (11 Sep):
    • Buangkok Green: 07:30, 07:36, 07:43, 07:50, 07:57 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
  • 2023 (26 Dec):
    • Buangkok Green: 07:25, 07:30, 07:36, 07:41, 07:47, 07:52, 07:58 (Mon-Fri)
    • Anson Rd: 18:20, 18:35 (Mon-Fri)
Buangkok Green / Cres β†’ Shenton Way (AM Peak)
Anson Rd β†’ Buangkok Green / Cres (PM Peak)
  • Buangkok Green (660): 07:20, 07:32, 07:43, 07:54, 08:06 (Mon-Fri)
  • Buangkok Cres (660M): 07:26, 07:37, 07:46, 08:00 (Mon-Fri)
  • Anson Rd (660/660M): 18:05*, 18:15, 18:25*, 18:35 (Mon-Fri)
    (*Alternate trips departing Anson Rd will operate as Bus Service 660M)

Go-Ahead City Direct Bus Service 661 (since 22 Sep 2015)

Route Chronology of Operating Hours
Pasir Ris Dr 3 β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Pasir Ris Dr 3 (PM Peak)
  • 2015 (22 Sep):
    • Pasir Ris Dr 3: 07:35, 07:50 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2016 (25 Jul):
    • Pasir Ris Dr 3: 07:30, 07:40, 07:50 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2019 (2 Jan):
    • Pasir Ris Dr 3: 07:30, 07:50 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)

Tower Transit City Direct Bus Service 663 (since 28 Sep 2015)

Route Chronology of Operating Hours
Yishun Ave 6 β†’ Shenton Way (AM Peak)
Anson Rd β†’ Yishun Ave 6 (PM Peak)
  • 2015 (28 Sep):
    • Yishun Ave 6: 07:20, 07:30, 07:40, 07:50 (Mon-Fri)
    • Anson Rd: 18:15, 18:30 (Mon-Fri)
  • 2017 (28 Sep):
    • Yishun Ave 6: 07:20, 07:35, 07:50 (Mon-Fri)
    • Anson Rd: 18:15, 18:30 (Mon-Fri)
  • 2023 (28 Aug):
    • Yishun Ave 6: 07:20, 07:30, 07:40, 07:50 (Mon-Fri)
    • Anson Rd: 18:15, 18:30 (Mon-Fri)

SMRT City Direct Bus Service 665 (since 12 Oct 2015)

Route Chronology of Operating Hours
Marsiling Dr β†’ Shenton Way (AM Peak)
Anson Rd β†’ Marsiling Dr (PM Peak)
  • 2015 (12 Oct):
    • Marsiling Dr: 07:15, 07:21, 07:27, 07:34, 07:40 (Mon-Fri)
    • Anson Rd: 18:15, 18:30 (Mon-Fri)
  • 2016 (4 Jan):
    • Marsiling Dr: 07:10, 07:16, 07:21, 07:27, 07:34, 07:40 (Mon-Fri)
    • Anson Rd: 18:15, 18:30 (Mon-Fri)
  • 2018 (9 Apr):
    • Marsiling Dr: 07:00, 07:08, 07:16, 07:24, 07:32, 07:40 (Mon-Fri)
    • Anson Rd: 18:15, 18:30 (Mon-Fri)
  • 2023 (29 May):
    • Marsiling Dr: 07:00, 07:10, 07:20, 07:30, 07:40 (Mon-Fri)
    • Anson Rd: 18:15, 18:30 (Mon-Fri)

Go-Ahead City Direct Bus Service 666 (since 29 Feb 2016)

Route Chronology of Operating Hours
Punggol Dr β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Punggol Dr (PM Peak)
(29 Feb 2016 – 22 Nov 2024)
  • Punggol Dr: 07:25, 07:40 (Mon-Fri)
  • Central Blvd: 18:10, 18:25 (Mon-Fri)
Punggol Dr β†’ Raffles Blvd (AM Peak)
Temasek Blvd β†’ Punggol Dr (PM Peak)
  • Punggol Dr: 07:25, 07:35, 07:45 (Mon-Fri)
  • Central Blvd: 17:58, 18:13 (Mon-Fri)

SBS Transit City Direct Bus Service 667 (since 8 Mar 2016)

Route Chronology of Operating Hours
Clementi Ave 4 β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Clementi Ave 4 (PM Peak)
  • Clementi Ave 4: 07:45, 08:00 (Mon-Fri)
  • Central Blvd: 18:20, 18:35 (Mon-Fri)

SBS Transit City Direct Bus Service 668 (since 15 Mar 2016)

Route Chronology of Operating Hours
Ang Mo Kio Ave 5 β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Ang Mo Kio Ave 5 (PM Peak)
  • 2016 (15 Mar):
    • Ang Mo Kio Ave 5: 07:30, 07:40, 07:50 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2018 (25 Jun):
    • Ang Mo Kio Ave 5: 07:30, 07:36, 07:43, 07:50 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)

Tower Transit City Direct Bus Service 670 (since 29 Mar 2016)

Route Chronology of Operating Hours
Yishun Ave 7 β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Yishun Ave 7 (PM Peak)
  • 2016 (29 Mar):
    • Yishun Ave 7: 07:20, 07:30, 07:40 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)
  • 2020 (30 Mar):
    • Yishun Ave 7: 07:20, 07:40 (Mon-Fri)
    • Central Blvd: 18:10, 18:25 (Mon-Fri)

SBS Transit City Direct Bus Service 671 (since 17 Oct 2016)

Route Chronology of Operating Hours
Punggol Rd β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Punggol Rd (PM Peak)
(17 Oct 2016 – 8 Nov 2024)
  • 2016 (17 Oct):
    • Punggol Rd: 07:35, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2018 (25 Jun):
    • Punggol Rd: 07:30, 07:40, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2020 (13 Jan):
    • Punggol Rd: 07:30, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2023 (27 Mar):
    • Punggol Rd: 07:30, 07:40, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2024 (27 May):
    • Punggol Rd: 07:20, 07:27, 07:35, 07:42, 07:50 (Mon-Fri)
    • Central Blvd: 18:00, 18:12, 18:24, 18:36 (Mon-Fri)
Punggol Rd β†’ Raffles Blvd (AM Peak)
Temasek Blvd β†’ Punggol Rd (PM Peak)
  • Punggol Rd: 07:20, 07:27, 07:35, 07:42, 07:50 (Mon-Fri)
  • Temasek Blvd: 17:48, 18:00, 18:12, 18:24 (Mon-Fri)

SBS Transit City Direct Bus Service 672 (since 7 Nov 2016)

Route Chronology of Operating Hours
Hougang St 51 β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Hougang St 51 (PM Peak)
(7 Nov 2016 – 8 Nov 2024)
  • 2016 (7 Nov):
    • Hougang St 51: 07:35, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2018 (25 Jun):
    • Hougang St 51: 07:35, 07:42, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2020 (13 Jan):
    • Hougang St 51: 07:35, 07:50 (Mon-Fri)
    • Central Blvd: 18:20, 18:35 (Mon-Fri)
  • 2024 (27 May):
    • Hougang St 51: 07:20, 07:30, 07:40, 07:50 (Mon-Fri)
    • Central Blvd: 18:05, 18:20, 18:35 (Mon-Fri)
Hougang St 51 β†’ Raffles Blvd (AM Peak)
Temasek Blvd β†’ Hougang St 51 (PM Peak)
  • Hougang St 51: 07:20, 07:30, 07:40, 07:50 (Mon-Fri)
  • Temasek Blvd: 17:53, 18:08, 18:23 (Mon-Fri)

Go-Ahead City Direct Bus Service 673 (since 14 Oct 2024)

Route Chronology of Operating Hours
Punggol Way β†’ Temasek Blvd (AM Peak)
Temasek Blvd β†’ Punggol Way (PM Peak)
  • Punggol Way: 07:25, 07:40 (Mon-Fri)
  • Temasek Blvd: 18:00, 18:15 (Mon-Fri)

Tower Transit City Direct Bus Service 674 (since 25 Nov 2024)

Route Chronology of Operating Hours
Tengah Dr β†’ Marina Blvd (AM Peak)
Central Blvd β†’ Tengah Dr (PM Peak)
  • Tengah Dr: 07:35, 07:50 (Mon-Fri)
  • Central Blvd: 18:15, 18:30 (Mon-Fri)

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