diff --git a/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py b/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
index d28cce587..49d4e6f22 100644
--- a/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
+++ b/noinfo/prospecting_guide_scripts/make-prospectingguide-new.py
@@ -397,7 +397,7 @@ htmlfile.write("""
 .notours .awful { background-color: #ffffff; }
 </style></head>""")
 htmlfile.write("<body><h1>Prospecting Guide</h1>")
-htmlfile.write("<p><small>Generated " + time.strftime("%x %X") + " by " + sys.argv[0] + "</small></p>\n")
+htmlfile.write("<p><small>Generated " + time.strftime("%Y-%m-%d %H:%M:%S %Z") + " by " + sys.argv[0] + "</small></p>\n")
 htmlfile.write("<p><b>Notes:</b></p><ul><li>A marking status of \"Retag\" means a tag is in place but it carries a provisional number, or in some cases an incorrect number, and needs replacing with a new tag.</li>\n<li>Kataster status codes indicate the size of a cave, its character and its exploration status, as described <a href=\"../katast.htm\">here</a>.</li><li>For more info on each cave, see the links to detailed description pages.</li></ul>\n")
 
 for maparea in mapcodes: