Work is one of the most commonly used nouns in human life, which is used with the aim of expressing different content, and is mostly used in the context of employment. Harmonization of work obligations with private obligations represents an increasing problem of the modern way of life and is increasingly regulated at various legal levels and by different regulations. It is assumed that the reason for this is the increasing burden on the working population with obligations coming from both spheres. This issue also includes achieving goals in private and business life. In the context of this final thesis, the concept of work and employment relationship will be used with the aim of detailed processing of these concepts and their harmonization, i.e. balance, which is wanted and should be achieved, taking into account the obligations imposed by work and those imposed by the private segment of life, especially with an emphasis on the sources of law governing this relationship. The modern way of life brings various difficulties in achieving a particular person at his job, depending on the name of the workplace and the position at the workplace, if on the other hand, one tries to harmonize the private life and obligations that it imposes, especially in cases of starting a family. Work cannot be determined and considered subjective, so it is difficult to find a balance between two such broad and at the same time extremely related concepts.