Hello, I have a question about working hours. Today I was supposed to have a shift from 10.00 to 17.00 according to the schedule of services, but at 7 o'clock in the morning I received an SMS message from my employer that I should arrive at the shift from 12-19: 00. The problem is that I had a weekend planned with my daughter and friend, and at half past five we were supposed to leave for an arranged stay by the water and fishing. I had to cancel this because the reception at the pension are only until 19:00 then they no longer stay, and start the changed shift. Is the employer entitled to this? Thank you for answer.