I assume this is not a problem as I have purchased my seat reservations for our Eurostar journeys between London to Paris. However there appears to be a mismatch between the times shown both for departure and arrivals between the planner and the official Eurostar schedules. As far as I can see the mismatch is for all trains available for booking this year.
Solved
Mismatch between Rail planner and Eurostar timetables
Best answer by rvdborgt
Only trust information from the operator.
As to the departure times for Eurostar from/to London: the Rail Planner app adds 35 minutes to the departure time, with the actual departure only showing when you check the journey details.
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