second ago\}' or '\{1979-02-26 18:30:00\}') to specify the value
of the ref at a prior point in time. This suffix may only be
used immediately following a ref name and the ref must have an
- existing log ($GIT_DIR/logs/<ref>).
+ existing log ($GIT_DIR/logs/<ref>). Note that this looks up the state
+ of your *local* ref at a given time; e.g., what was in your local
+ `master` branch last week. If you want to look at commits made during
+ certain times, see `--since` and `--until`.
* A ref followed by the suffix '@' with an ordinal specification
enclosed in a brace pair (e.g. '\{1\}', '\{15\}') to specify
`r1` or `r2` but not from both.
Two other shorthands for naming a set that is formed by a commit
-and its parent commits exists. `r1{caret}@` notation means all
+and its parent commits exist. The `r1{caret}@` notation means all
parents of `r1`. `r1{caret}!` includes commit `r1` but excludes
-its all parents.
+all of its parents.
Here are a handful of examples: