The Scottish Government has estimated that around 1,283 workers from its core and main agencies are on strike, equating to around 18% of Government staff.
A spokeswoman for the Government said:
"Main Scottish Government and agency buildings have remained open and arrangements are in place to ensure essential business continues."
BBC journalists in Cumbria and southern Scotland have walked out in a row over jobs.
It's part of a national day of action in protest at compulsory redundancies nationally, mainly affecting BBC Scotland, 5live and BBC Asian Network.
Around 20 National Union of Journalist members at BBC Cumbria and Look North in Carlisle are taking part.
Staff in Selkirk in the Scottish Borders are also taking part.
Trains across Scotland will operate as normal in the run up to Christmas, after ScotRail announced the strike was off.
RMT union members and ScotRail have previously failed to reach an agreement over the sacking of a colleague.
They were planning on striking on December 22nd and Christmas Eve.
"The RMT strike is off+dispute is over. Trains will run as normal this Christmas. Thanks to customers for your patience in the last week"
Strikes by ScotRail workers will go ahead in the run up to Christmas.
The two 24-hour strikes will take place on December 22 and Christmas Eve after a dispute over the sacking of an employee.
Members of the Rail Maritime and Transport union are warning of "massive disruption" to services.
ScotRail says trains will still run on strike days but called the disruption a "clear attack" on the travelling public.