From fafdce7eb5d71203e68861b064b5035f1f97215e Mon Sep 17 00:00:00 2001
From: Julien Enoch <julien.e@zettascale.tech>
Date: Tue, 2 Jul 2024 09:50:56 +0200
Subject: [PATCH] Remove rfc3339 methods for no_std

---
 src/ntp64.rs     | 7 +++----
 src/timestamp.rs | 2 ++
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/ntp64.rs b/src/ntp64.rs
index 2d395c1..7cb8d6e 100644
--- a/src/ntp64.rs
+++ b/src/ntp64.rs
@@ -118,14 +118,13 @@ impl NTP64 {
 
     /// Convert to a RFC3339 time representation with nanoseconds precision.
     /// e.g.: `"2024-07-01T13:51:12.129693000Z"``
+    #[cfg(feature = "std")]
     pub fn to_string_rfc3339(&self) -> String {
-        #[cfg(feature = "std")]
-        return format_rfc3339_nanos(self.to_system_time()).to_string();
-        #[cfg(not(feature = "std"))]
-        return self.0.to_string();
+        format_rfc3339_nanos(self.to_system_time()).to_string()
     }
 
     /// Parse a RFC3339 time representation into a NTP64.
+    #[cfg(feature = "std")]
     pub fn parse_rfc3339(s: &str) -> Result<Self, ParseNTP64Error> {
         match humantime::parse_rfc3339(s) {
             Ok(time) => time
diff --git a/src/timestamp.rs b/src/timestamp.rs
index 50ff323..95135df 100644
--- a/src/timestamp.rs
+++ b/src/timestamp.rs
@@ -64,6 +64,7 @@ impl Timestamp {
 
     /// Convert to a RFC3339 time representation with nanoseconds precision.
     /// e.g.: `"2024-07-01T13:51:12.129693000Z/33"``
+    #[cfg(feature = "std")]
     pub fn to_string_rfc3339(&self) -> String {
         #[cfg(feature = "std")]
         return format!("{:#}", self);
@@ -72,6 +73,7 @@ impl Timestamp {
     }
 
     /// Parse a RFC3339 time representation into a NTP64.
+    #[cfg(feature = "std")]
     pub fn parse_rfc3339(s: &str) -> Result<Self, ParseTimestampError> {
         match s.find('/') {
             Some(i) => {