People will tweet what they are doing using the hashtag #OurDay in a bid to showcase the variety of jobs councils do every day. The 24-hour event will start at 00:01 on Wednesday.
Last year’s campaign generated 11,000 tweets from 3,500 contributors, reaching three million people.
Peter Fleming, chair of the LGA’s Improvement and Innovation Board, said: "Councils do a huge amount of work for their communities every day, but this is not always clear to our residents. #OurDay is a chance for us to tell the many stories of 24 hours in the life of a council, from providing care for the most vulnerable in our society to fixing potholes to cleaning our streets.
"I hope as many local authorities, councillors and staff as possible take this opportunity to show how hard they are working for their communities. Councils are the most open and transparent part of the public sector and using social media is an easy and effective way for us to communicate with our residents and answer any questions they may have."
#OurDay has been set up by the LGA and the Knowledge Hub, a public services platform.