- date:<expr>..! can be used as a shorthand for date:<expr>..<expr>. The
- expansion takes place before interpretation, and thus, for example,
- date:monday..! matches from the beginning of Monday until the end of
- Monday. With <b>Xapian</b> <b>Field</b> <b>Processor</b> support (see below), non-range
- date queries such as date:yesterday will work, but otherwise will give
+ If specifying a time range using timestamps in conjunction with the
+ date prefix, each timestamp must be preceded by @ (ASCII hex 40). As
+ above, each timestamp is a number representing the number of seconds
+ since 1970-01-01 00:00:00 UTC. For example:
+ date:@<initial-timestamp>..@<final-timestamp>
+
+ date:<expr>..! can be used as a shorthand for date:<expr>..<expr>. The
+ expansion takes place before interpretation, and thus, for example,
+ date:monday..! matches from the beginning of Monday until the end of
+ Monday. With <b>Xapian</b> <b>Field</b> <b>Processor</b> support (see below), non-range
+ date queries such as date:yesterday will work, but otherwise will give