Talks have taken place to try to prevent a strike which threatens to disrupt some of Scotland's leading galleries and museums.
Four unions are due to take part in the strike at Culture and Sport Glasgow on Friday.
Members are angry about plans to freeze wages and cut overtime.
Culture and Sport Glasgow runs several venues in the city including Kelvingrove Museum, the Burrell Collection and the Mitchell Library.
It also has responsibilities for community centres and sports facilities.
Unions are downplaying hopes that the talks will prove successful.
The 24-hour strike, which will start at 0001 BST on Friday, will affect private functions, sporting events, concerts and theatre performances across the city, according to the unions.
A total of 3,000 workers are employed by CSG, an independent charity set up by Glasgow City Council, in about 70 locations in public leisure centres, swimming pools, libraries, museums and theatres in Glasgow.
Unions claim some staff will see their hours cut and will no longer be given extra money for working on certain public holidays. CSG has stressed that nobody will see their basic wages reduced.
Martin Doran, GMB officer for members at CSG, said: "I had talks last night with senior officers of CSG in a last ditch attempt to find a compromise to allow the strike on 30 April to be suspended. I am awaiting a response to these talks.
"I have no indication that a positive response will be forthcoming."
A spokesman for Culture and Sport Glasgow said: "Around one-in-seven of our staff voted for strike action and the trade unions are fully aware that the public sector is not immune from the current financial crisis.
"We have consistently made it clear that our priority is to protect both services and jobs.
"In order to make the savings necessary to achieve this, we must change the way we work - or be forced to consider job cuts."