Welcome to Blue Monday - your train’s late!
The Monday morning journey to work became more of a trial, with delays of up to an hour.
Some of the worst disruption hit East Coast services between Leeds and Wakefield because of a fault on a train.
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Hide AdSignalling problems between Sheffield and Doncaster caused delays of up to 20 minutes, and there were also delays between Leeds and Ilkley.
The day had already been dubbed Blue Monday by some as the festive season became a distant memory and workers realised how long it would be before their next holiday.
Tetley branded today Brew Monday as it announced the return of a family used to advertise its products.