diff --git a/api-ref/source/conf.py b/api-ref/source/conf.py
index ed5e70b70f..83e22cc09c 100644
--- a/api-ref/source/conf.py
+++ b/api-ref/source/conf.py
@@ -23,9 +23,7 @@
 # serve to show the default.
 
 import os
-import subprocess
 import sys
-import warnings
 
 import openstackdocstheme
 
@@ -174,13 +172,7 @@ todo_include_todos = False
 # If not None, a 'Last updated on:' timestamp is inserted at every page
 # bottom, using the given strftime format.
 # The empty string is equivalent to '%b %d, %Y'.
-git_cmd = ["git", "log", "--pretty=format:'%ad, commit %h'", "--date=local",
-           "-n1"]
-try:
-    html_last_updated_fmt = subprocess.check_output(git_cmd).decode('utf-8')
-except Exception:
-    warnings.warn('Cannot get last updated time from git repository. '
-                  'Not setting "html_last_updated_fmt".')
+html_last_updated_fmt = '%Y-%m-%d %H:%M'
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 5d6dffb993..52b9d5d7d2 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -210,15 +210,6 @@ html_theme_options = {}
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
 # html_last_updated_fmt = '%b %d, %Y'
-git_cmd = [
-    "git", "log", "--pretty=format:'%ad, commit %h'", "--date=local", "-n1"
-]
-try:
-    import subprocess
-    html_last_updated_fmt = subprocess.check_output(git_cmd).decode('utf-8')
-except Exception:
-    warnings.warn('Cannot get last updated time from git repository. '
-                  'Not setting "html_last_updated_fmt".')
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.