From f9249d5bd2d2df0d71781fb4006523432ad0566d Mon Sep 17 00:00:00 2001
From: Brandon Rhodes <brandon@rhodesmill.org>
Date: Sat, 5 Oct 2024 05:00:30 -0400
Subject: [PATCH] Document that `utc_strftime()` can't support %Z

Fixes #1006.
---
 skyfield/timelib.py | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/skyfield/timelib.py b/skyfield/timelib.py
index 332f6cf3e..688f3e175 100644
--- a/skyfield/timelib.py
+++ b/skyfield/timelib.py
@@ -631,10 +631,8 @@ def utc_strftime(self, format='%Y-%m-%d %H:%M:%S UTC'):
         * ``%S`` second
         * ``%A`` day of week, ``%a`` its abbreviation
 
-        You can find the full list, along with options that control
-        field widths and leading zeros, at:
-
-        https://docs.python.org/3/library/time.html#time.strftime
+        The ``%Z`` and ``%z`` formats are not supported; instead, simply
+        use the literal characters ``'UTC'`` in your format string.
 
         If the smallest time unit in your format is minutes or seconds,
         then the time is rounded to the nearest minute or second.