Checking return departure time

I am on vacation (Mauritius) with a (Swedish) travel bureau which offers hotel packages but I only have a “flight chair” without hotel and therefore have no contact with the bureau´s on site representatives. Ideally I should have made contact with the local representatives on arrival for the sole purpose of getting their phone number to check the return flight schedule 24 hours before departure but I missed that. However, I can reach the airport departures on internet.
The local representative can only be reached by going a considerable distance to a hotel where they might have a folder available with phone numbers, or possibly interviewing other guests. They have my phone and email and in the few cases there have been a change of departure I have always been alerted on commercial flights by email and sms.
The departure is tomorrow and the flight (TOM 767) is scheduled on time. Is there any risk for me here – or additional value in contacting the local representative?
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How many hours before departure can you check-in?
Most Airlines require travellers to check in 2 or three hours before the flight. Check with the Airlines for their regulations. Accordingly ensure you reach the Airport at least 2 or 3 hours before the scheduled departure of the Aeroplane.What is considered departure time?
The departure time is the moment that your plane pushes back from the gate, not the time it takes off. The arrival time is the moment that your plane pulls into the gate, not the time it touches down on the runway.What is the check-in procedure when arriving?
Overview:Can I check-in 4 hours before departure?
For flights within the U.S., as well as most international flights, baggage will generally not be accepted for check-in more than four hours before a scheduled flight departure, although this policy varies by airport and daily check-in counter hours.Biden faces heat online for checking time while honouring fallen troops | Latest English News | WION
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Images: Gustavo Fring, Gustavo Fring, Nataliya Vaitkevich, Nataliya Vaitkevich