During the work, services running from Leeds to Dewsbury and Huddersfield would divert from Mirfield via Brighouse to Halifax – and Bradford Interchange on Saturdays, it said.
Saturday services between Bradford Interchange and Huddersfield would no longer operate, while Sunday services from Leeds to Bradford Interchange and Huddersfield would start and end at Halifax, and services between Huddersfield and Sheffield would start and end at Lockwood, the operator added.
Matt Rice, chief operating officer at Northern, said: “The twice-yearly timetable change is an opportunity for us to adjust services so they better reflect customer demand.
“The Christmas period is also an opportunity for Network Rail to carry out engineering work while there are fewer people travelling on the network.
“For those travelling between Christmas and New Year, we ask that they check their journey as close to the day of travel as possible to see if those engineering works will affect their journey.”
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