The phrase "activist hours" is correct and usable in written English.
It can be used to refer to specific times dedicated to activism or advocacy work, often in a volunteer or community context.
Example: "During the activist hours, we will organize community outreach programs to raise awareness about environmental issues."
Alternatives: "advocacy hours" or "campaign hours".
Twitter has suspended the accounts of a number of American "alt-right" activists hours after announcing a renewed push to crack down on hate speech.
Acting on intelligence from Kennedy, police burst into a primary school during the night in April 2009 and arrested the activists hours before the planned break-in at Ratcliffe-on Soar power station.
Nottinghamshire police used the intelligence to arrest more than 100 activists hours before some of them planned to invade the Ratcliffe-on-Soar power station in Nottinghamshire, in April 2009.
The "netroots"—the online version of "grassroots" political activists—spent hours in panels on policy and technology, and kept up running analyses via blogs and Twitter.
It had been expected to serve legal papers on the camp on Tuesday morning, giving activists 48 hours to pack up their tents or face court action.
The April 6 group, which has been praised internationally for its role in the movement that brought down Mr. Mubarak, said Wednesday that police had raided a local office without a warrant and detained several activists for hours.
The Corporation of London had been expected to serve legal papers on the camp on Tuesday morning, giving activists 48 hours to pack up their tents or face court action.
The activists spent hours strategizing how best to express their dissatisfaction with the U.S.'s failure to provide anti-aircraft missiles and heavy weaponry that could strike down government planes that terrorized the "liberated" areas.
He said one Greenpeace activist spent 24 hours in that cell.
But as an activist he spends hours earning nothing but the bitter curses of India's top sports administrators.
