pfsense/pfsense — pull request #701 by N0YB (2013-07-07 06:34:32+00:00)
Title: Correct month, quarter (3 months), and 4 year RRD graphs length.

Correct month, quarter (3 months), and 4 year RRD graphs length.
Longest possible month is 31 days, not 32.
Longest possible quarter (3 months) is 92 days (30+31+31), not 93 (31+31+31).
4 Years is 1461 days (365 x 4 + 1), not 1464 (366 x 4). Except about once every century or so when leap year is skipped 4 years is then 1460 days. But that is not going to happen again for a very long time. Unfortunately pfSense, nor anyone alive today will probably still be alive by then.