Changing start date year after year

Hello, 

I would Like to know How to set up a start date that changes year after year for some time until it sette? 

I Will try and explain My self with an example.

I have done the football League for st.Kitts and Nevis with the real structure. Due to the world cup next League Will start approx in jan/feb 2023 finishing probably in august/september. 

For the 2024 i would Like to set it to start in April and finish in december

Than for 2025 i would set june as start and february finish and 2026 (ready for following world cup) to start in september and finish in May. 

How can I work this out in the editor?