The Athens journalists' union ESIEA called a three-hour work stoppage from 11:00 to 14:00 on Thursday and a rally outside ESIEA's building at noon.
Protests rallies have also been organised by the General Confederation of Employees of Greece (GSEE), the largest umbrella trade union group representing private-sector workers, and the civil servants' union federation ADEDY, starting at 11:00 at Klafthmonos Square in central Athens.
A rally in Omonia is being organised by the PAME trade union faction affiliated to the Communist Party of Greece (KKE), with gathering spots planned in Kannigos Square, Karaiskaki Square, Vathis Square, Kotzia Square and Haftia.
Staff in public transport services are to join the strike with work stoppages at the start and end of their shifts, though services will keep running during the middle of the day to allow workers to participation in strike rallies.
Trains of all kinds, including the Proastiakos suburban railway serving the airport, will not be running throughout Thursday, while some services on the day before and day after will be cancelled.
The Athens electric railway and metro system will not be running from the start of the shift until 10:00 in the morning and from 16:00 in the afternoon until the end of the shift. Tram workers will hold work stoppages from the start of their shift until 9:00 in the morning and from 17:00 in the afternoon until the end of the day.
Buses and trolleys will be running between 9:00 in the morning until 21:00 at night.
There will also be a disruption to airline traffic on Thursday as a result of air-traffic controllers joining the strike action.
The Hellenic Confederation of Commerce and Entrepreneurship (HCCE) representing Greece's traders and small businesses also announced its intention to join the strike.
The national seamen's union federation PNO announced that it will join the 24-hour general strike last Wednesday. Seamen on all categories of ships will strike from 00:01 until midnight on November 27, meaning that all ships will remain in port and not sail on that day.
Finally the main opposition Radical Left Coalition (SYRIZA) party called for mass participation in the strike under the slogan "it is either us or them". At the same time it accused the government that while a short while ago it was talking about the country's exit from the memorandum in an effort to deceive the Greek people, now it prepares for new tough measures.
(Combined Reports)