diff --git a/src/rust/lib_ccxr/src/common/options.rs b/src/rust/lib_ccxr/src/common/options.rs
index b263502b8..c982203f6 100644
--- a/src/rust/lib_ccxr/src/common/options.rs
+++ b/src/rust/lib_ccxr/src/common/options.rs
@@ -639,3 +639,23 @@ impl Default for Options {
         }
     }
 }
+
+impl Options {
+    pub fn millis_separator(&self) -> char {
+        if self.ucla {
+            '.'
+        } else {
+            self.date_format.millis_separator()
+        }
+    }
+}
+
+impl EncoderConfig {
+    pub fn millis_separator(&self) -> char {
+        if self.ucla {
+            '.'
+        } else {
+            self.date_format.millis_separator()
+        }
+    }
+}
diff --git a/src/rust/src/common.rs b/src/rust/src/common.rs
index aa6eefae7..e1ad15cbb 100644
--- a/src/rust/src/common.rs
+++ b/src/rust/src/common.rs
@@ -69,7 +69,7 @@ impl FromRust<Options> for ccx_s_options {
         self.settings_dtvcc = options.settings_dtvcc.to_ctype();
         self.is_608_enabled = options.is_608_enabled as _;
         self.is_708_enabled = options.is_708_enabled as _;
-        self.millis_separator = options.date_format.millis_separator() as _;
+        self.millis_separator = options.millis_separator() as _;
         self.binary_concat = options.binary_concat as _;
         self.use_gop_as_pts = if let Some(usegops) = options.use_gop_as_pts {
             if usegops {
@@ -257,7 +257,7 @@ impl CType2<ccx_s_teletext_config, &Options> for TeletextConfig {
             encoding: value.enc_cfg.encoding.to_ctype() as _,
             nofontcolor: self.nofontcolor.into(),
             nohtmlescape: self.nohtmlescape.into(),
-            millis_separator: self.date_format.millis_separator() as _,
+            millis_separator: value.millis_separator() as _,
             latrusmap: self.latrusmap.into(),
         };
         config.set_verbose(self.verbose.into());
@@ -571,7 +571,7 @@ impl CType<encoder_cfg> for EncoderConfig {
             ucla: self.ucla as _,
             encoding: self.encoding as _,
             date_format: self.date_format.to_ctype(),
-            millis_separator: self.date_format.millis_separator() as _,
+            millis_separator: self.millis_separator() as _,
             autodash: self.autodash as _,
             trim_subs: self.trim_subs as _,
             sentence_cap: self.sentence_cap as _,
diff --git a/src/rust/src/parser.rs b/src/rust/src/parser.rs
index d84444c1b..d7e4d39a7 100644
--- a/src/rust/src/parser.rs
+++ b/src/rust/src/parser.rs
@@ -1222,11 +1222,9 @@ impl OptionsExt for Options {
             tlt_config.page = Cell::new(TeletextPageNumber::from(tlt_config.user_page));
         }
 
-        let mut millis_separator = ',';
         // Red Hen/ UCLA Specific stuff
         if args.ucla {
             self.ucla = true;
-            millis_separator = '.';
             self.enc_cfg.no_bom = true;
 
             if !self.transcript_settings.is_final {
@@ -1291,11 +1289,15 @@ impl OptionsExt for Options {
         }
 
         if args.sects {
-            self.date_format = TimestampFormat::Seconds { millis_separator };
+            self.date_format = TimestampFormat::Seconds {
+                millis_separator: ',',
+            };
         }
 
         if args.datets {
-            self.date_format = TimestampFormat::Date { millis_separator };
+            self.date_format = TimestampFormat::Date {
+                millis_separator: ',',
+            };
         }
 
         if args.teletext {