On 07/06/2017 12:22 PM, Junio C Hamano wrote: > If you didn't create this repository back in 2012, then the syntax > "master@{01-01-2012}" that asks "Back at the beginning of 2012, what > object did the master branch point at?" does not have a sensible > answer. That can be seen in the warning you got from Git. > > Hope this clarifies. Thanks; it does explain what I saw, and even makes some sense. However, it does leave me scratching my head about how to accomplish what I set out to do, or just how to reference commits by their dates as displayed by git log w/o either changing the system time/date when committing historic data (which seems like a total no-no), or making multiple passes over "get log" to determine how to ref. Perhaps there's a way to patch the log to match dates recorded in relevant objects? Trying not to sound snide, but, what's the point of "--date=" on commits if you can't use it later? Granted, things always seem harder until you understand how the work. Thanks again.