Mass onslaught enactment connected Wednesday volition origin "significant disruption", Downing Street has said.
Teachers, assemblage workers, civilian servants, bid and autobus drivers are each owed to walkout during the day.
Around 500,000 workers are owed to instrumentality part, making it the biggest onslaught successful much than a decade, according to the Trades Union Congress (TUC).
Talks betwixt teaching unions and the Department for Education (DfE) ended without advancement connected Monday.
The National Education Union (NEU) said Education Secretary Gillian Keegan had "squandered an opportunity" to debar Wednesday's onslaught action.
It expects astir 23,000 schools to beryllium affected successful the archetypal of its 7 planned walkouts by teacher members successful England and Wales.
The DfE has offered a 5% wage emergence to astir teachers for the existent schoolhouse year, but the NEU wants a afloat funded above-inflation summation for teachers.
Some schools person announced they volition close but others are inactive deciding - meaning galore parents are waiting to perceive whether they volition request to marque childcare arrangements.
But Schools Minister Nick Gibb said the authorities expected the "majority" of schools successful England to beryllium unfastened "in immoderate capacity".
Teachers articulation a question of nationalist assemblage workers striking implicit wage and conditions.
Members of 7 unions volition beryllium connected onslaught connected 1 February.
Lecturers, librarians, and different assemblage workers belonging to the UCU national volition articulation the walkouts.
So volition bid drivers belonging to Aslef, affecting services successful England, Scotland and Wales.
Passengers person been warned determination volition beryllium immense disruption to services crossed 14 obstruction networks, with immoderate operators incapable to tally immoderate trains.
Customers are encouraged to cheque their way earlier travelling.
Teachers belonging to the Educational Institute of Scotland volition onslaught connected Wednesday in the Clackmannanshire and Aberdeen metropolis areas.
About 100,000 civilian servants successful 124 authorities departments are among those taking portion successful a quality implicit wage and conditions, including workers astatine the Department for Work and Pensions (DWP) and the Driver and Vehicle Licensing Agency.
Mark Mclean, 42, a civilian servant astatine the DWP successful Newcastle, is going connected onslaught and said losing a day's wage was "very hard" but described the determination to locomotion retired arsenic "massive".
"Everything's going up and the developed state that we are, I deliberation we shouldn't person to chopped galore corners conscionable to enactment the state and electrical on," helium said.
"I'm a azygous parent, and my girl lives with maine full-time. She's got a beingness she's accustomed to and similar immoderate kid you don't privation them to endure erstwhile it comes to getting amended wages.
"So it is hard to chopped corners similar that but if needs must, you person to."
Some autobus drivers employed by Abellio successful London are besides taking action, with the Unite national calling for a wage emergence for members to bespeak the outgo of living.
The enactment comes arsenic the TUC says the mean nationalist assemblage idiosyncratic is much than £200 a period worse disconnected compared with a decennary ago.
The national volition manus successful a petition to Downing Street connected Wednesday successful protestation astatine the government's proposed "anti-strike" legislation.
The caller instrumentality would acceptable minimum work levels that striking industries would person to conscionable earlier taking action.
The premier minister's authoritative spokesperson said: "We cognize that determination volition beryllium important disruption, fixed the standard of the onslaught enactment that is taking spot tomorrow, and that volition beryllium precise hard for the nationalist trying to spell astir their regular lives.
"We are upfront that this volition disrupt people's lives and that's wherefore we deliberation negotiations alternatively than picket lines are the close approach."
The spokesperson besides said the announcement of an ambulance workers' onslaught connected 10 February was "deeply concerning".
"We are putting successful spot important mitigations, which person antecedently helped trim immoderate of the interaction of these strikes," helium said, urging unions to reconsider.
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