Yes, jake is quite right.
This is a civil matter of employment law and is to do with your Contract of Employment. That states what is required of you and what is required of your employer. If the particular situation is not specifically covered in your contract it will probably be covered by general employment legislation. It has nothing to do with Human Rights.
In general, Human Rights legislation covers actions taken by the State (or agencies of the State) and was originally designed to prevent excessive oppression by the authorities. Because it is deliberately vague its use has been extended and often covers scenarios which a reasonable and sane person would not normally view as an infringment of "Human Rights". However, even with the widest interpretation I cannot see it being applicable in the circumstances you describe.