Lawn Sprinkler Watering Schedules?

Hi All, With summer temperatures here and a lack of rain, I'd like to ensure I'm watering my typical West Palm Beach lawn (e.g. a mixture of St. Augustine and Bermuda grass with scattered crotons, Hawaiian ti plants, calusia, and a few mixed palms) at a commonly recommended level. I know every lawn, plant, and irrigation system is unique, but what would you consider to be a reasonable starting point? Would it be something like Monday, Wednesday, Friday, and Sunday starting at 9pm and running for 20 minutes per zone (before fine tuning)? If it helps, I'm using a shallow well as my water source and I haven't identified any specific watering restrictions yet. Thank you!