BBC Radio 4 Broadcast has been rescheduled, as below in the interim due to the Covid-19 related impact.
This should be read in conjunction with the published guidance on MSI.
COVID-19: BBC Radio 4 Broadcast Times
Weather broadcasts and Maritime safety information: leaflets “
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/876590/COVID-19_BBC_Radio_4_Marine_Weather_Bulletins_Broadcast_Times.pdf