Simon Aherne and Anna Cousins have already booked a venue in Gloucestershire and sent invitations to more than 100 loved ones.
However, they say their plans are now “out the window” after the Government announced the bank holiday was being moved back four days in 2020 to coincide with the 75th anniversary of VE Day.
The couple are now concerned that “barely 20” people will turn up to the wedding, reports Wales Online.
If they cancel, they will lose hundreds of pounds in deposits.
Mr Aherne and Ms Cousins, a PR worker, are due to get married at Kingscote Barn in Gloucestershire on May 3, 2020 – a Sunday and the day before the traditional bank holiday Monday.
The Welsh couple from Cardiff say they respect wishes to mark the VE Day anniversary but have hit out at the government, saying there was a lack of warning.
Mr Aherne, a teacher and part-time DJ, told the BBC: “Most of our family are teachers or in the entertainment business – so the bank holiday worked out perfectly for us. Now we are just sitting here wondering what we are going to do.”
Mr Aherne and Ms Cousins, a PR worker, are due to get married at Kingscote Barn in Gloucestershire May 3, 2020 – a Sunday and the day before the traditional bank holiday Monday. The couple say they respect wishes to mark the VE Day anniversary, but they have hit out at the government, saying there was a lack of warning.
Mr Aherne said: “How can the government just chuck this on people with 11 months to go? They have had time to prepare and could have given people a lot more notice.”
VE Day – or Victory in Europe Day – is marked on May 8 and commemorates the Allies accepting the surrender of Nazi Germany in the Second World War.
The May Day bank holiday is traditionally held on a Monday but will be put back to the Friday and form part of a three-day weekend of commemorative events.
The business secretary, Greg Clark, said moving the bank holiday was a “right and fitting tribute”.
The May Day bank holiday has only ever been moved once before, when it was shifted from May 1 to May 8 in 1995 to mark the 50th anniversary of VE Day.