Coaches will replace trains on the Gippsland line starting Saturday to allow for continued upgrade works.
The Department of Transport urged Gippsland passengers to allow up to an hour extra for their journey over the next nine days, from Saturday, November 5 until Sunday, November 13, for Gippsland Line Upgrade works.
Coaches will not stop at Flinders St after 7pm, or at Richmond or Clayton stations.
"While trains aren't operating on the line, V/Line crews will use the opportunity to undertake maintenance on the network including bridge works near Sale, rail milling around Yarragon, works at Rosedale and soil testing at a number of locations," the department added.
A temporary timetable is available on the V/Line and PTV websites.
For more information, visit ptv.vic.gov.au/disruptions.