Because this blueprint is trigger based you may find that my 
Sensor Light blueprint will work better. You can use a toggle helper as the trigger and then just turn ON the toggle helper so the blueprint is always active, then use the time and sun elevation settings and you may find this will always work in your time zone.
PS: to add a toggle helper you will need to add any trigger first then edit in YAML the automation and replace the trigger entity with your toggle helper entity.
Blacky 