diff --git a/src/time.rs b/src/time.rs
index 99bb532..e399b3d 100644
--- a/src/time.rs
+++ b/src/time.rs
@@ -270,25 +270,39 @@ impl TimeReader for CdsShortTimeProvider {
 
 /// Module to generate the ASCII timecodes specified in
 /// [CCSDS 301.0-B-4](https://public.ccsds.org/Pubs/301x0b4e1.pdf) section 3.5 .
+/// See [chrono::DateTime::format] for a usage example of the generated
+/// [chrono::format::DelayedFormat] structs.
 pub mod ascii {
     use chrono::format::{DelayedFormat, StrftimeItems};
     use chrono::{DateTime, Utc};
 
     /// Tuple of format string and formatted size for time code A.
     ///
-    ///     YYYY-MM-DDThh:mm:ss.ddd
+    /// Format: YYYY-MM-DDThh:mm:ss.ddd
     ///
     /// Three digits are used for the decimal fraction
     pub const FMT_STR_CODE_A_WITH_SIZE: (&str, usize) = ("%FT%T%.3f", 23);
     /// Tuple of format string and formatted size for time code A.
     ///
-    ///     YYYY-MM-DDThh:mm:ss.dddZ
+    ///  Format: YYYY-MM-DDThh:mm:ss.dddZ
     ///
     /// Three digits are used for the decimal fraction and a terminator is added at the end.
     pub const FMT_STR_CODE_A_TERMINATED_WITH_SIZE: (&str, usize) = ("%FT%T%.3fZ", 24);
 
+    /// Tuple of format string and formatted size for time code A.
+    ///
+    /// Format: YYYY-DDDThh:mm:ss.ddd
+    ///
+    /// Three digits are used for the decimal fraction
+    pub const FMT_STR_CODE_B_WITH_SIZE: (&str, usize) = ("%Y-%jT%T%.3f", 21);
+    /// Tuple of format string and formatted size for time code A.
+    ///
+    /// Format: YYYY-DDDThh:mm:ss.dddZ
+    ///
+    /// Three digits are used for the decimal fraction and a terminator is added at the end.
+    pub const FMT_STR_CODE_B_TERMINATED_WITH_SIZE: (&str, usize) = ("%Y-%jT%T%.3fZ", 22);
+
     /// Generates a time code formatter using the [FMT_STR_CODE_A_WITH_SIZE] format.
-    /// See [chrono::DateTime::format] for a usage example.
     #[cfg(feature = "alloc")]
     #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
     pub fn generate_time_code_a(date: &DateTime<Utc>) -> DelayedFormat<StrftimeItems<'static>> {
@@ -296,7 +310,6 @@ pub mod ascii {
     }
 
     /// Generates a time code formatter using the [FMT_STR_CODE_A_TERMINATED_WITH_SIZE] format.
-    /// See [chrono::DateTime::format] for a usage example.
     #[cfg(feature = "alloc")]
     #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
     pub fn generate_time_code_a_terminated(
@@ -304,6 +317,22 @@ pub mod ascii {
     ) -> DelayedFormat<StrftimeItems<'static>> {
         date.format(FMT_STR_CODE_A_TERMINATED_WITH_SIZE.0)
     }
+
+    /// Generates a time code formatter using the [FMT_STR_CODE_B_WITH_SIZE] format.
+    #[cfg(feature = "alloc")]
+    #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
+    pub fn generate_time_code_b(date: &DateTime<Utc>) -> DelayedFormat<StrftimeItems<'static>> {
+        date.format(FMT_STR_CODE_B_WITH_SIZE.0)
+    }
+
+    /// Generates a time code formatter using the [FMT_STR_CODE_B_TERMINATED_WITH_SIZE] format.
+    #[cfg(feature = "alloc")]
+    #[cfg_attr(doc_cfg, doc(cfg(feature = "alloc")))]
+    pub fn generate_time_code_b_terminated(
+        date: &DateTime<Utc>,
+    ) -> DelayedFormat<StrftimeItems<'static>> {
+        date.format(FMT_STR_CODE_B_TERMINATED_WITH_SIZE.0)
+    }
 }
 
 #[cfg(all(test, feature = "std"))]
@@ -317,19 +346,18 @@ mod tests {
     use postcard::{from_bytes, to_allocvec};
 
     #[test]
-    fn test_ascii_timestamp_unterminated() {
+    fn test_ascii_timestamp_a_unterminated() {
         let date = Utc::now();
         let stamp_formatter = ascii::generate_time_code_a(&date);
         let stamp = format!("{}", stamp_formatter);
         let t_sep = stamp.find("T");
         assert!(t_sep.is_some());
         assert_eq!(t_sep.unwrap(), 10);
-        assert_eq!(stamp.len(), 23);
         assert_eq!(stamp.len(), ascii::FMT_STR_CODE_A_WITH_SIZE.1);
     }
 
     #[test]
-    fn test_ascii_timestamp_terminated() {
+    fn test_ascii_timestamp_a_terminated() {
         let date = Utc::now();
         let stamp_formatter = ascii::generate_time_code_a_terminated(&date);
         let stamp = format!("{}", stamp_formatter);
@@ -338,11 +366,41 @@ mod tests {
         assert_eq!(t_sep.unwrap(), 10);
         let z_terminator = stamp.find("Z");
         assert!(z_terminator.is_some());
-        assert_eq!(z_terminator.unwrap(), 23);
-        assert_eq!(stamp.len(), 24);
+        assert_eq!(
+            z_terminator.unwrap(),
+            ascii::FMT_STR_CODE_A_TERMINATED_WITH_SIZE.1 - 1
+        );
         assert_eq!(stamp.len(), ascii::FMT_STR_CODE_A_TERMINATED_WITH_SIZE.1);
     }
 
+    #[test]
+    fn test_ascii_timestamp_b_unterminated() {
+        let date = Utc::now();
+        let stamp_formatter = ascii::generate_time_code_b(&date);
+        let stamp = format!("{}", stamp_formatter);
+        let t_sep = stamp.find("T");
+        assert!(t_sep.is_some());
+        assert_eq!(t_sep.unwrap(), 8);
+        assert_eq!(stamp.len(), ascii::FMT_STR_CODE_B_WITH_SIZE.1);
+    }
+
+    #[test]
+    fn test_ascii_timestamp_b_terminated() {
+        let date = Utc::now();
+        let stamp_formatter = ascii::generate_time_code_b_terminated(&date);
+        let stamp = format!("{}", stamp_formatter);
+        let t_sep = stamp.find("T");
+        assert!(t_sep.is_some());
+        assert_eq!(t_sep.unwrap(), 8);
+        let z_terminator = stamp.find("Z");
+        assert!(z_terminator.is_some());
+        assert_eq!(
+            z_terminator.unwrap(),
+            ascii::FMT_STR_CODE_B_TERMINATED_WITH_SIZE.1 - 1
+        );
+        assert_eq!(stamp.len(), ascii::FMT_STR_CODE_B_TERMINATED_WITH_SIZE.1);
+    }
+
     #[test]
     fn test_creation() {
         assert_eq!(unix_to_ccsds_days(DAYS_CCSDS_TO_UNIX), 0);