Eurostar workers are to take seven days of strike action this month, spread over two weekends, including the busy Bank Holiday.
About 80 train managers are involved in the dispute. Members of the RMT union will walk out from 00.01am on Friday August 12, returning at 11.59pm on Monday August 14.
A second strike has been called for the three days over the Bank Holiday weekend, beginning August 27.
The RMT has accused Eurostar of failing to honour an agreement over working hours and rotas, saying their work/life balance had been ‘repeatedly undermined’.
RMT general secretary Mick Cash said: "Our train manager members at Eurostar have a heavy commitment to shift work and unsocial hours and are sick and tired of the company’s failure to honour agreements.
"Our members have every right to have a fair work/life balance that fulfills the operational needs of the company while guaranteeing quality time off for friends and family.
"It’s now time for Eurostar to come to the negotiating table with a set of proposals that honours our agreements and guarantees our members a genuine work/life balance."
RMT members working for Southern Rail are on strike this week, although the union has offered to call off the strike if management comes back to the table.
The union announced yesterday workers at Virgin Trains East Coast have voted overwhelmingly in favour of strike action in a long-running dispute over job cuts, pay, working conditions and safety.
