diff --git a/manual/template_lang.rst b/manual/template_lang.rst
index db6272a2ed..4d079a866c 100644
--- a/manual/template_lang.rst
+++ b/manual/template_lang.rst
@@ -398,7 +398,7 @@ In `GPM` the functions described in `Single Function Mode` all require an additi
     * ``w``: add ``v`` weeks to ``date``
     * ``y``: add ``v`` years to ``date``, where a year is 365 days.
 
-  Example: ``'1s3d-1m'`` will add 1 second, add 3 days, and subtract 1 month from ``date``.
+  Example: ``'1s3d-1m'`` will add 1 second, add 3 days, and subtract 1 minute from ``date``.
 * ``days_between(date1, date2)`` -- return the number of days between ``date1`` and ``date2``. The number is positive if ``date1`` is greater than ``date2``, otherwise negative. If either ``date1`` or ``date2`` are not dates, the function returns the empty string.
 * ``divide(x, y)`` -- returns ``x / y``. Throws an exception if either ``x`` or ``y`` are not numbers. This function can usually be replaced by the ``/`` operator.
 * ``eval(string)`` -- evaluates the string as a program, passing the local variables. This permits using the template processor to construct complex results from local variables. In :ref:`Template Program Mode <template_mode>`, because the `{` and `}` characters are interpreted before the template is evaluated you must use `[[` for the `{` character and `]]` for the ``}`` character. They are converted automatically. Note also that prefixes and suffixes (the `|prefix|suffix` syntax) cannot be used in the argument to this function when using :ref:`Template Program Mode <template_mode>`.
diff --git a/src/calibre/utils/formatter_functions.py b/src/calibre/utils/formatter_functions.py
index 646b979a03..c6d98d5afb 100644
--- a/src/calibre/utils/formatter_functions.py
+++ b/src/calibre/utils/formatter_functions.py
@@ -1629,7 +1629,7 @@ class BuiltinDateArithmetic(BuiltinFormatterFunction):
             "w: add 'v' weeks to 'date' "
             "y: add 'v' years to 'date', where a year is 365 days. "
             "Example: '1s3d-1m' will add 1 second, add 3 days, and subtract 1 "
-            "month from 'date'.")
+            "minute from 'date'.")
 
     calc_ops = {
         's': lambda v: timedelta(seconds=v),
@@ -1638,7 +1638,7 @@ class BuiltinDateArithmetic(BuiltinFormatterFunction):
         'd': lambda v: timedelta(days=v),
         'w': lambda v: timedelta(weeks=v),
         'y': lambda v: timedelta(days=v * 365),
-        }
+    }
 
     def evaluate(self, formatter, kwargs, mi, locals, date, calc_spec, fmt=None):
         try: