While working overseas, employees can rightly expect to work the same hours and receive the same pay as specified in the employment contract.
However, you should check whether there are employment rights or collective agreements in force in the country the employee will be working in that might require you to amend the employee's contract. For example, under the Posting of Workers Directive, posted workers sent to another European Union member state to work must receive the basic key terms and conditions of the member state they have been posted to. For more information, see the employment contract.
Overtime and time in lieu for business travel
If it is usual practice for your business to pay overtime, employees can claim for overtime where applicable. See manage overtime.
You might agree to give employees time off in lieu for days worked in addition to those specified in their employment contract. This might also be applied to time spent travelling for business purposes. Such provisions should be explained within your employment handbook. See overtime and time off in lieu.
Employers have a legal responsibility to make sure employees do not work excessive hours. Employees should also be encouraged to take their statutory rest breaks.
Important: The UK has left the EU and there is now a transition period until the end of 2020. This information is still current but could change. Any changes will be documented here. For more information, see Brexit support for employers.