At the time of writing - November 2020 - a key workers timetable has recently taken effect due to Covid-19 restrictions. You can see details via the Northern website.  Please refer to the National Rail Enquiries website for timings etc. The service, operated by Northern Trains, is approximately hourly and runs between Rochdale/Manchester and Clitheroe, trains typically formed of two or three coaches of Class 142, 150, 153, 156 or 158 Multiple Units