diff --git a/CHANGES b/CHANGES
index b914fd133b..3e8c8ce57a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -16,6 +16,7 @@ Version 2.20.0
   * LESS: Support single-line comments (#3005)
   * LilyPond: Update to 2.25.29 (#2974)
   * Python: Add ``t``-string support (#3009, #3010)
+  * TOML: Support TOML 1.1.0 (#3026)
 
 - Drop Python 3.8, and add Python 3.14 as a supported version (#2987, #3012)
 
diff --git a/pygments/lexers/configs.py b/pygments/lexers/configs.py
index 5e7f47b6dd..71079134af 100644
--- a/pygments/lexers/configs.py
+++ b/pygments/lexers/configs.py
@@ -1127,7 +1127,7 @@ class TOMLLexer(RegexLexer):
     # Based on the TOML spec: https://toml.io/en/v1.0.0
 
     # The following is adapted from CPython's tomllib:
-    _time = r"\d\d:\d\d:\d\d(\.\d+)?"
+    _time = r"\d\d:\d\d(:\d\d(\.\d+)?)?"
     _datetime = rf"""(?x)
                   \d\d\d\d-\d\d-\d\d # date, e.g., 1988-10-27
                 (
@@ -1238,9 +1238,9 @@ class TOMLLexer(RegexLexer):
             default('value'),
         ],
         'inline-table': [
-            # Note that unlike inline arrays, inline tables do not
-            # allow newlines or comments.
-            (r'[ \t]+', Whitespace),
+            # Whitespace (since TOML 1.1.0, same as in array)
+            (r'\s+', Whitespace),
+            (r'#.*', Comment.Single),
 
             # Keys
             include('key'),
@@ -1275,7 +1275,7 @@ class TOMLLexer(RegexLexer):
             (r"'", String.Single),
         ],
         'escapes': [
-            (r'\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}', String.Escape),
+            (r'\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}', String.Escape),
             (r'\\.', String.Escape),
         ],
     }
diff --git a/tests/snippets/toml/toml-1.1.0.txt b/tests/snippets/toml/toml-1.1.0.txt
new file mode 100644
index 0000000000..987e5815a5
--- /dev/null
+++ b/tests/snippets/toml/toml-1.1.0.txt
@@ -0,0 +1,93 @@
+---input---
+["toml 1.1.0 features"]
+tbl = {
+   key      = "a string",
+   moar-tbl =  {
+      key = 1,
+   },
+}
+
+null = "null byte: \x00; letter a: \x61"
+csi = "\e["
+
+dt = 2010-02-03 14:15
+t  = 14:15
+
+---tokens---
+'['           Keyword
+'"'           Literal.String.Double
+'toml 1.1.0 features' Literal.String.Double
+'"'           Literal.String.Double
+']'           Keyword
+'\n'          Text.Whitespace
+
+'tbl'         Name
+' '           Text.Whitespace
+'='           Operator
+' '           Text.Whitespace
+'{'           Punctuation
+'\n   '       Text.Whitespace
+'key'         Name
+'      '      Text.Whitespace
+'='           Punctuation
+' '           Text.Whitespace
+'"'           Literal.String.Double
+'a string'    Literal.String.Double
+'"'           Literal.String.Double
+','           Punctuation
+'\n   '       Text.Whitespace
+'moar-tbl'    Name
+' '           Text.Whitespace
+'='           Punctuation
+'  '          Text.Whitespace
+'{'           Punctuation
+'\n      '    Text.Whitespace
+'key'         Name
+' '           Text.Whitespace
+'='           Punctuation
+' '           Text.Whitespace
+'1'           Literal.Number.Integer
+','           Punctuation
+'\n   '       Text.Whitespace
+'}'           Punctuation
+','           Punctuation
+'\n'          Text.Whitespace
+
+'}'           Punctuation
+'\n\n'        Text.Whitespace
+
+'null'        Name
+' '           Text.Whitespace
+'='           Operator
+' '           Text.Whitespace
+'"'           Literal.String.Double
+'null byte: ' Literal.String.Double
+'\\x00'       Literal.String.Escape
+'; letter a: ' Literal.String.Double
+'\\x61'       Literal.String.Escape
+'"'           Literal.String.Double
+'\n'          Text.Whitespace
+
+'csi'         Name
+' '           Text.Whitespace
+'='           Operator
+' '           Text.Whitespace
+'"'           Literal.String.Double
+'\\e'         Literal.String.Escape
+'['           Literal.String.Double
+'"'           Literal.String.Double
+'\n\n'        Text.Whitespace
+
+'dt'          Name
+' '           Text.Whitespace
+'='           Operator
+' '           Text.Whitespace
+'2010-02-03 14:15' Literal.Date
+'\n'          Text.Whitespace
+
+'t'           Name
+'  '          Text.Whitespace
+'='           Operator
+' '           Text.Whitespace
+'14:15'       Literal.Date
+'\n'          Text.Whitespace