Saturday is considered a working day for Royal Mail, with deliveries fulfilled Monday to Saturday for all households it has mail for.
However, some Britons expecting a letter, parcel, or package this Friday, January 17, could be disappointed.
The postal service reported that its mail was processed on time over the past 24 hours across its rail, road and air networks.
Mail centres across the UK also processed everything to schedule, but the same can’t be said for local delivery offices.
Royal Mail has warned customers of possible delays as 14 delivery offices grapple with “local issues”.
In its latest service update, Royal Mail said: “We aim to deliver to all addresses we have mail for, six days a week. In a small number of local offices, this may temporarily not be possible due to local issues such as high levels of sick absence, resourcing, or other local factors.
“In those cases, we will rotate deliveries to minimise the delay to individual customers. We also provide targeted support to those offices to address their challenges and restore our service to the high standard our customers would normally receive.”
Households in Alnwick, Hungerford, Manchester and Southgate are among those “most impacted” by disruption.
Severe weather across parts of the UK may also impact Royal Mail services. While customers have been reassured that “most services have recovered following the recent severe weather disruption”, some regions may still feel the effects.
Some localised delays may be in specific parts of Scotland, Northern Ireland, the North East and the North West of England.
Most deliveries are being completed normally, but the postal service urged customers to consider localised delays while Royal Mail works to recover its regular service.