Do simple math in the aisle where each month is 30 days. 75 for example, is 2 full months (60) plus 15 days. Jan, Feb, and half of March, so 25 075 was made about March 15th.
25 120 is 4 full months. Jan, Feb, Mar, Apr.
Whether its April 30th or May 1st is irrelevant. The 30 day month thing dances a day or two with 31 day months but its always real close.
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