When Used in the existing, "at any time" includes up for the current. When applied previously, it could contain the present, or it may well only incorporate the time as many as that point in past times. Stack Exchange community includes 183 Q&A communities which includes Stack Overflow, the largest, https://share.evernote.com/note/83495cb8-ac88-5cd2-b616-eb9da17c1aaa