285             .and_then(|nano| NaiveTime::from_hms_nano_opt(hour, min, sec, nano))  in from_hms_milli_opt()
335         micro.checked_mul(1_000).and_then(|nano| NaiveTime::from_hms_nano_opt(hour, min, sec, nano))  in from_hms_micro_opt()
357     pub fn from_hms_nano(hour: u32, min: u32, sec: u32, nano: u32) -> NaiveTime {  in from_hms_nano()
358         NaiveTime::from_hms_nano_opt(hour, min, sec, nano).expect("invalid time")  in from_hms_nano()
384     pub fn from_hms_nano_opt(hour: u32, min: u32, sec: u32, nano: u32) -> Option<NaiveTime> {  in from_hms_nano_opt()
385         if hour >= 24 || min >= 60 || sec >= 60 || nano >= 2_000_000_000 {  in from_hms_nano_opt()
389         Some(NaiveTime { secs: secs, frac: nano })  in from_hms_nano_opt()
411     pub fn from_num_seconds_from_midnight(secs: u32, nano: u32) -> NaiveTime {  in from_num_seconds_from_midnight()
412         NaiveTime::from_num_seconds_from_midnight_opt(secs, nano).expect("invalid time")  in from_num_seconds_from_midnight()
436     pub fn from_num_seconds_from_midnight_opt(secs: u32, nano: u32) -> Option<NaiveTime> {  in from_num_seconds_from_midnight_opt()
437         if secs >= 86_400 || nano >= 2_000_000_000 {  in from_num_seconds_from_midnight_opt()
440         Some(NaiveTime { secs: secs, frac: nano })  in from_num_seconds_from_midnight_opt()
985     fn with_nanosecond(&self, nano: u32) -> Option<NaiveTime> {  in with_nanosecond()
986         if nano >= 2_000_000_000 {  in with_nanosecond()
989         Some(NaiveTime { frac: nano, ..*self })  in with_nanosecond()
1250         let (sec, nano) = if self.frac >= 1_000_000_000 {  in fmt()
1257         if nano == 0 {  in fmt()
1259         } else if nano % 1_000_000 == 0 {  in fmt()
1260             write!(f, ".{:03}", nano / 1_000_000)  in fmt()
1261         } else if nano % 1_000 == 0 {  in fmt()
1262             write!(f, ".{:06}", nano / 1_000)  in fmt()
1264             write!(f, ".{:09}", nano)  in fmt()