aaaa, ok.. Now i understand what you meant
Ok, try to find the block of the low power screen in this file and try to add this lines at the end:
date-format: "%D";
date-font: $ FONT_FAMILY normal 2.4mm;

or
date-size: bla, bla, bla...

I don't tried this and i don't know what will happen.. Careful, this can cause reboot loop..