I have recently been offered a new job. Despite having 18 years service with my current employer I only have to provide one months notice. I have two weeks annual leave booked at the beginning of August and would ideally like my notice to end at the end of this annual leave. If I only give my employer a months notice half of it will be taken up with my annual leave. Am I able to give them 6 weeks notice thus giving them time to make alternative arrangements to cover my role or will I be expected to give one month only?