sum based between dates. with out effcting current formula

hello All

Please attahed

T6 = sum up G6 I6 K6 M6 06 based on the date between T5-U5, then minus the T6

There hidden cells in the blue and white section

Yellow is the expected outcome for dates between 18th Feb and 25th
Green is the expected outcome for the date 25th

The dates change daily so the formula needs to read the dates

any help would be great