From 8ebbb736dfcc207c99e16a76493f07e6291bf35c Mon Sep 17 00:00:00 2001
From: Paul Dicker <paul@pitdicker.nl>
Date: Sat, 10 Jun 2023 16:53:37 +0200
Subject: [PATCH] Make parsing `%:z` conform to documentation

---
 src/format/mod.rs   |  1 -
 src/format/parse.rs | 18 +++++++++++++-----
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/format/mod.rs b/src/format/mod.rs
index 2071de6387..12f316a3e4 100644
--- a/src/format/mod.rs
+++ b/src/format/mod.rs
@@ -209,7 +209,6 @@ pub enum Fixed {
     TimezoneName,
     /// Offset from the local time to UTC (`+09:00` or `-04:00` or `+00:00`).
     ///
-    /// In the parser, the colon can be omitted and/or surrounded with any amount of whitespace.
     /// The offset is limited from `-24:00` to `+24:00`,
     /// which is the same as [`FixedOffset`](../offset/struct.FixedOffset.html)'s range.
     TimezoneOffsetColon,
diff --git a/src/format/parse.rs b/src/format/parse.rs
index 9cbcca78c3..69cb9a27df 100644
--- a/src/format/parse.rs
+++ b/src/format/parse.rs
@@ -460,14 +460,22 @@ where
                         try_consume!(scan::timezone_name_skip(s));
                     }
 
-                    &TimezoneOffsetColon
-                    | &TimezoneOffset
-                    | &TimezoneOffsetColonZ
-                    | &TimezoneOffsetZ => {
+                    &TimezoneOffset | &TimezoneOffsetZ => {
                         let offset_format = UtcOffsetFormat {
                             precision: OffsetPrecision::Minutes,
                             colons: Colon::Maybe,
-                            allow_zulu: spec == &TimezoneOffsetColonZ || spec == &TimezoneOffsetZ,
+                            allow_zulu: spec == &TimezoneOffsetZ,
+                            padding: Pad::Zero,
+                        };
+                        let offset = try_consume!(scan::utc_offset(s.trim_start(), offset_format));
+                        parsed.set_offset(i64::from(offset)).map_err(|e| (s, e))?;
+                    }
+
+                    &TimezoneOffsetColon | &TimezoneOffsetColonZ => {
+                        let offset_format = UtcOffsetFormat {
+                            precision: OffsetPrecision::Minutes,
+                            colons: Colon::Colon,
+                            allow_zulu: spec == &TimezoneOffsetColonZ,
                             padding: Pad::Zero,
                         };
                         let offset = try_consume!(scan::utc_offset(s.trim_start(), offset_format));