diff --git a/src/calibre/manual/gui.rst b/src/calibre/manual/gui.rst
index a4e18c2e07..e2758bc257 100644
--- a/src/calibre/manual/gui.rst
+++ b/src/calibre/manual/gui.rst
@@ -352,7 +352,7 @@ The syntax for searching for dates is::
 If the date is ambiguous, the current locale is used for date comparison. For example, in an mm/dd/yyyy
 locale, 2/1/2009 is interpreted as 1 Feb 2009. In a dd/mm/yyyy locale, it is interpreted as 2 Jan 2009.  Some
 special date strings are available. The string ``today`` translates to today's date, whatever it is. The
-strings `yesterday`` and ``thismonth`` also work. In addition, the string ``daysago`` can be used to compare
+strings ``yesterday`` and ``thismonth`` also work. In addition, the string ``daysago`` can be used to compare
 to a date some number of days ago, for example: date:>10daysago, date:<=45daysago.
 
 You can search for books that have a format of a certain size like this::
diff --git a/src/calibre/utils/zipfile.py b/src/calibre/utils/zipfile.py
index e0f453452c..fa15bff4b4 100644
--- a/src/calibre/utils/zipfile.py
+++ b/src/calibre/utils/zipfile.py
@@ -1123,6 +1123,13 @@ class ZipFile:
                     targetpath = os.sep.join(components)
                     with open(targetpath, 'wb') as target:
                         shutil.copyfileobj(source, target)
+        # Kovid: Try to preserve the timestamps in the ZIP file
+        try:
+            mtime = time.localtime()
+            mtime = time.mktime(member.date_time + (0, 0) + (mtime.tm_isdst,))
+            os.utime(targetpath, (mtime, mtime))
+        except:
+            pass
         self.extract_mapping[member.filename] = targetpath
         return targetpath