1. I regret to say that the introduction of split shifts is perfectly legal as it does not give rise to a redundancy situation. Whilst all changes in working hours must be agreed between employer and employee, with a complaint to a Rights Commissioner possible if there is a unilateral imposition of alternative working hours, the key issue where there is a change in working hours is whether the employee will be entitled to redundancy if s/he refuses to work these different hours. In a job such as bartending where there is generally an economic necessity to a change in working hours, the cases have shown that it is not a redundancy situation if hours are changed provided the employee has the opportunity to earn a similar amount as previously. However, I would suggest to the employer as part of a union or group negotiation that an increase in remuneration occur due to the better economic availability of staff. Under the Dublin negotiated agreement for bar staff, bartenders working split shifts earn a slightly higher rate in return for the increased availability. But I would not suggest that you refuse to work the new split shift hours.