Unlock the rest of the settings without playing hours on end
While playing, go to the operator menu by pressing and holding the Launch button then press start. Now go to the adjustments menu (2), choose the feature adjustments (2.2), choose initial time zone (2.2.1) and change the timezone to Random. Then you go to the tests menu (3), choose the Switch Levels Test (3.1), choose the Timezone Lock Delta (3.1.47) and hold both flipper buttons for 2 seconds at least. There... the settings have been unlocked and you can now change them from the operator menu.