Hammersmith and City Line Departures from Barking

[Ccross]

Greetings all- apologies if too niche a post but wondering if anyone knows which H & C line trains Eastbound from Barking still use Platform 3 not 6 in the weekday morning peak? Or is there site that can point me in the right direction please

Thanks ever so much!

 

[Mojo]

You can download the Working Timetables from the TfL website here: https://tfl.gov.uk/corporate/publications-and-reports/working-timetables

Whilst this will generally be stuck to, note that the platforms can and do change in best interests of the service, particularly when there have been delays.