I have received the information below from First Bus:
"I am writing to inform you of some important service changes we are introducing from 1 September, as we continue to develop our network to best meet the needs of customers.
Our 72 service operating between Bradford and Leeds will become the first 24hr bus service in West Yorkshire. This is being achieved with journeys added in the late evening and early hours, which will operate seven days a week.
This builds on the success we have seen on this travel corridor, where there has been a combined frequency of 7 to 8 minutes together with the express X6 service since extra buses were introduced in May.
This 24hr service will benefit all sectors of the local economy and society, helping to support the night time economy, shift working and leisure and hospitality markets. Safety is our top priority and we believe this 24-hour connectivity aligns well with mayoral commitments to give focus to the safety of women and girls.
Seven other services have been reviewed and retimed using the specialist scheduling software we have invested in, to support better prediction of journey times throughout the day.
These are the 16, 47/47A, 65, 74, 75 and 86. This will mean some timetable adjustments to allow for peak periods, which we believe will give more accuracy for customers to plan journeys and which will improve further bus service reliability.
Full details of the changes will be published on our website from Friday 2 August together with communication to customers."