That's about right. The Governor has no later than one month prior to session to submit his recommended budget. Session always begins on the first Tuesday of the first Monday in March of odd years and January of even years. That's March 7 in 2023. So his recommended budget must be submitted no later than February 7.
Executive agencies submit their budgets by October 15 when Session begins in March and September 15 when Session begins in January.
Been there, done that. Got pulled out of a FWS workshop in Orlando one July to rejigger our Bureau's budget. Thank goodness I had the laptop with me.