The employer and employee usually agree on when the annual holidays are taken. The employer has the power to decide on the timing of annual holidays within the time limits laid down in the Annual Holidays Act, i.e. summer holiday during the summer leave period (2 May–30 September) and winter holiday between 1 October and 30 April. For certain sectors, there may be different rules laid down in the collective agreement or collective agreement for public servants. Summer and winter holiday must both be granted as an uninterrupted period, unless keeping the work going requires that the portion of the summer holiday exceeding 12 weekdays is taken at a different time in one or several parts.
When an employer decides on the timing of the annual holiday, the employee must be informed about this at least one month before the annual holiday starts. Exceptions are allowed only in cases where it is quite impossible to comply with this obligation. If this is the case, the employee must be informed of the time of the annual holiday as soon as possible, but not later than two weeks before the start of the holiday.
If the employer has already informed the employee of the time of the annual holiday, i.e. the time has been decided, or the time when the holiday will be taken has been agreed between the employer and employee, the employer cannot unilaterally, by his or her decision alone, change the time. If the employer unilaterally changes the time of the annual holiday that has already been decided and this causes harm or loss to the employee, the employer must compensate for such harm or loss as specified in the Employment Contracts Act. However, the employee must still comply with the employer’s decisions concerning the new time of the annual leave, even in cases where the employer changes this time in a way that violates the law.
The employer is not allowed to interrupt a holiday that has already started. With regard to public officials, provisions on interrupting the annual holiday are laid down in the collective agreement concerning them.
The time when the annual holiday is taken may be changed by a mutual agreement between the employer and employee.