Membership Renewal Sometimes Adds One Year Plus a Day

S2Member Pro. We have membership renewal set up to extend membership by one year using a billing modification form. It works great except sometimes it adds a day to the year addition, that is, with our EOT of 10/1/17, the renewal EOT is sometimes 10/1/18 and sometimes 10/2/18. Any idea what I’m doing wrong? Thanks for help on this and all past help!

You did nothing wrong, this is just a side effect of your “grace period” and “time of payment in the day (and the timezone of the member)” (plus “29 Feb” too…) - calculation can’t be more accurate.

Ok thank you very much!