Fix TIME_OF_FIRST and TIME_OF_LAST OBS formatting

Signed-off-by: Guillaume W. Bres <[email protected]>

rinex/src/header.rs

@@ -29,10 +29,11 @@ use std::collections::HashMap;
 use std::io::prelude::*;
 use std::str::FromStr;
 
-use gnss::constellation::ParsingError as ConstellationParsingError;
-use hifitime::Epoch;
+use hifitime::{Epoch, Unit};
 use thiserror::Error;
 
+use gnss::constellation::ParsingError as ConstellationParsingError;
+
 #[cfg(feature = "serde")]
 use serde::Serialize;
 
@@ -1567,7 +1568,8 @@ impl Header {
     fn fmt_observation_rinex(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         if let Some(obs) = &self.obs {
             if let Some(e) = obs.time_of_first_obs {
-                let (y, m, d, hh, mm, ss, nanos) = e.to_gregorian_utc();
+                let (y, m, d, hh, mm, ss, nanos) =
+                    (e + e.leap_seconds(true).unwrap_or(0.0) * Unit::Second).to_gregorian_utc();
                 writeln!(
                     f,
                     "{}",
@@ -1581,7 +1583,8 @@ impl Header {
                 )?;
             }
             if let Some(e) = obs.time_of_last_obs {
-                let (y, m, d, hh, mm, ss, nanos) = e.to_gregorian_utc();
+                let (y, m, d, hh, mm, ss, nanos) =
+                    (e + e.leap_seconds(true).unwrap_or(0.0) * Unit::Second).to_gregorian_utc();
                 writeln!(
                     f,
                     "{}",