Hi, the tint not changing on map change is on purpose, as it would also undo any manual tints you have set via event commands. I can try to track which tint was set manually v automatically in a future update, right now the plugin does not know if resetting the tint would be undoing its day/night tint or a manual tint you have applied yourself.
Thanks for suggestion, you can use the plugin command Get Time or Get Days to get the current time of day or the current number of days that have passed in game, however the Get Time will be in frames. I guess you would like to get a current time unit (seconds, minutes, hours, etc) to avoid the calculation from the frame count? I should be able to add that in a future update.