humantime/
date.rs

1use std::error::Error as StdError;
2use std::fmt;
3use std::str;
4use std::time::{SystemTime, Duration, UNIX_EPOCH};
5
6#[cfg(target_os="cloudabi")]
7mod max {
8    pub const SECONDS: u64 = ::std::u64::MAX / 1_000_000_000;
9    #[allow(unused)]
10    pub const TIMESTAMP: &'static str = "2554-07-21T23:34:33Z";
11}
12#[cfg(all(
13    target_pointer_width="32",
14    not(target_os="cloudabi"),
15    not(target_os="windows"),
16    not(all(target_arch="wasm32", not(target_os="emscripten")))
17))]
18mod max {
19    pub const SECONDS: u64 = ::std::i32::MAX as u64;
20    #[allow(unused)]
21    pub const TIMESTAMP: &'static str = "2038-01-19T03:14:07Z";
22}
23
24#[cfg(any(
25    target_pointer_width="64",
26    target_os="windows",
27    all(target_arch="wasm32", not(target_os="emscripten")),
28))]
29mod max {
30    pub const SECONDS: u64 = 253_402_300_800-1;  // last second of year 9999
31    #[allow(unused)]
32    pub const TIMESTAMP: &str = "9999-12-31T23:59:59Z";
33}
34
35/// Error parsing datetime (timestamp)
36#[derive(Debug, PartialEq, Clone, Copy)]
37pub enum Error {
38    /// Numeric component is out of range
39    OutOfRange,
40    /// Bad character where digit is expected
41    InvalidDigit,
42    /// Other formatting errors
43    InvalidFormat,
44}
45
46impl StdError for Error {}
47
48impl fmt::Display for Error {
49    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
50        match self {
51            Error::OutOfRange => write!(f, "numeric component is out of range"),
52            Error::InvalidDigit => write!(f, "bad character where digit is expected"),
53            Error::InvalidFormat => write!(f, "timestamp format is invalid"),
54        }
55    }
56}
57
58#[derive(Debug, Clone, PartialEq, Eq)]
59enum Precision {
60    Smart,
61    Seconds,
62    Millis,
63    Micros,
64    Nanos,
65}
66
67/// A wrapper type that allows you to Display a SystemTime
68#[derive(Debug, Clone)]
69pub struct Rfc3339Timestamp(SystemTime, Precision);
70
71#[inline]
72fn two_digits(b1: u8, b2: u8) -> Result<u64, Error> {
73    if b1 < b'0' || b2 < b'0' || b1 > b'9' || b2 > b'9' {
74        return Err(Error::InvalidDigit);
75    }
76    Ok(((b1 - b'0')*10 + (b2 - b'0')) as u64)
77}
78
79/// Parse RFC3339 timestamp `2018-02-14T00:28:07Z`
80///
81/// Supported feature: any precision of fractional
82/// digits `2018-02-14T00:28:07.133Z`.
83///
84/// Unsupported feature: localized timestamps. Only UTC is supported.
85pub fn parse_rfc3339(s: &str) -> Result<SystemTime, Error> {
86    if s.len() < "2018-02-14T00:28:07Z".len() {
87        return Err(Error::InvalidFormat);
88    }
89    let b = s.as_bytes();
90    if b[10] != b'T' || b[b.len()-1] != b'Z' {
91        return Err(Error::InvalidFormat);
92    }
93    parse_rfc3339_weak(s)
94}
95
96/// Parse RFC3339-like timestamp `2018-02-14 00:28:07`
97///
98/// Supported features:
99///
100/// 1. Any precision of fractional digits `2018-02-14 00:28:07.133`.
101/// 2. Supports timestamp with or without either of `T` or `Z`
102/// 3. Anything valid for `parse_3339` is valid for this function
103///
104/// Unsupported feature: localized timestamps. Only UTC is supported, even if
105/// `Z` is not specified.
106///
107/// This function is intended to use for parsing human input. Whereas
108/// `parse_rfc3339` is for strings generated programmatically.
109pub fn parse_rfc3339_weak(s: &str) -> Result<SystemTime, Error> {
110    if s.len() < "2018-02-14T00:28:07".len() {
111        return Err(Error::InvalidFormat);
112    }
113    let b = s.as_bytes();  // for careless slicing
114    if b[4] != b'-' || b[7] != b'-' || (b[10] != b'T' && b[10] != b' ') ||
115       b[13] != b':' || b[16] != b':'
116    {
117        return Err(Error::InvalidFormat);
118    }
119    let year = two_digits(b[0], b[1])? * 100 + two_digits(b[2], b[3])?;
120    let month = two_digits(b[5], b[6])?;
121    let day = two_digits(b[8], b[9])?;
122    let hour = two_digits(b[11], b[12])?;
123    let minute = two_digits(b[14], b[15])?;
124    let mut second = two_digits(b[17], b[18])?;
125
126    if year < 1970 || hour > 23 || minute > 59 || second > 60 {
127        return Err(Error::OutOfRange);
128    }
129    // TODO(tailhook) should we check that leaps second is only on midnight ?
130    if second == 60 {
131        second = 59
132    };
133    let leap_years = ((year - 1) - 1968) / 4 - ((year - 1) - 1900) / 100 +
134                     ((year - 1) - 1600) / 400;
135    let leap = is_leap_year(year);
136    let (mut ydays, mdays) = match month {
137        1 => (0, 31),
138        2 if leap => (31, 29),
139        2 => (31, 28),
140        3 => (59, 31),
141        4 => (90, 30),
142        5 => (120, 31),
143        6 => (151, 30),
144        7 => (181, 31),
145        8 => (212, 31),
146        9 => (243, 30),
147        10 => (273, 31),
148        11 => (304, 30),
149        12 => (334, 31),
150        _ => return Err(Error::OutOfRange),
151    };
152    if day > mdays || day == 0 {
153        return Err(Error::OutOfRange);
154    }
155    ydays += day - 1;
156    if leap && month > 2 {
157        ydays += 1;
158    }
159    let days = (year - 1970) * 365 + leap_years + ydays;
160
161    let time = second + minute * 60 + hour * 3600;
162
163    let mut nanos = 0;
164    let mut mult = 100_000_000;
165    if b.get(19) == Some(&b'.') {
166        for idx in 20..b.len() {
167            if b[idx] == b'Z' {
168                if idx == b.len()-1 {
169                    break;
170                } else {
171                    return Err(Error::InvalidDigit);
172                }
173            }
174            if b[idx] < b'0' || b[idx] > b'9' {
175                return Err(Error::InvalidDigit);
176            }
177            nanos += mult * (b[idx] - b'0') as u32;
178            mult /= 10;
179        }
180    } else if b.len() != 19 && (b.len() > 20 || b[19] != b'Z') {
181        return Err(Error::InvalidFormat);
182    }
183
184    let total_seconds = time + days * 86400;
185    if total_seconds > max::SECONDS {
186        return Err(Error::OutOfRange);
187    }
188
189    Ok(UNIX_EPOCH + Duration::new(total_seconds, nanos))
190}
191
192fn is_leap_year(y: u64) -> bool {
193    y % 4 == 0 && (y % 100 != 0 || y % 400 == 0)
194}
195
196/// Format an RFC3339 timestamp `2018-02-14T00:28:07Z`
197///
198/// This function formats timestamp with smart precision: i.e. if it has no
199/// fractional seconds, they aren't written at all. And up to nine digits if
200/// they are.
201///
202/// The value is always UTC and ignores system timezone.
203pub fn format_rfc3339(system_time: SystemTime) -> Rfc3339Timestamp {
204    Rfc3339Timestamp(system_time, Precision::Smart)
205}
206
207/// Format an RFC3339 timestamp `2018-02-14T00:28:07Z`
208///
209/// This format always shows timestamp without fractional seconds.
210///
211/// The value is always UTC and ignores system timezone.
212pub fn format_rfc3339_seconds(system_time: SystemTime) -> Rfc3339Timestamp {
213    Rfc3339Timestamp(system_time, Precision::Seconds)
214}
215
216/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000Z`
217///
218/// This format always shows milliseconds even if millisecond value is zero.
219///
220/// The value is always UTC and ignores system timezone.
221pub fn format_rfc3339_millis(system_time: SystemTime) -> Rfc3339Timestamp {
222    Rfc3339Timestamp(system_time, Precision::Millis)
223}
224
225/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000000Z`
226///
227/// This format always shows microseconds even if microsecond value is zero.
228///
229/// The value is always UTC and ignores system timezone.
230pub fn format_rfc3339_micros(system_time: SystemTime) -> Rfc3339Timestamp {
231    Rfc3339Timestamp(system_time, Precision::Micros)
232}
233
234/// Format an RFC3339 timestamp `2018-02-14T00:28:07.000000000Z`
235///
236/// This format always shows nanoseconds even if nanosecond value is zero.
237///
238/// The value is always UTC and ignores system timezone.
239pub fn format_rfc3339_nanos(system_time: SystemTime) -> Rfc3339Timestamp {
240    Rfc3339Timestamp(system_time, Precision::Nanos)
241}
242
243impl Rfc3339Timestamp {
244    /// Returns a reference to the [`SystemTime`][] that is being formatted.
245    pub fn get_ref(&self) -> &SystemTime {
246        &self.0
247    }
248}
249
250impl fmt::Display for Rfc3339Timestamp {
251    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
252        use self::Precision::*;
253
254        let dur = self.0.duration_since(UNIX_EPOCH)
255            .expect("all times should be after the epoch");
256        let secs_since_epoch = dur.as_secs();
257        let nanos = dur.subsec_nanos();
258
259        if secs_since_epoch >= 253_402_300_800 { // year 9999
260            return Err(fmt::Error);
261        }
262
263        /* 2000-03-01 (mod 400 year, immediately after feb29 */
264        const LEAPOCH: i64 = 11017;
265        const DAYS_PER_400Y: i64 = 365*400 + 97;
266        const DAYS_PER_100Y: i64 = 365*100 + 24;
267        const DAYS_PER_4Y: i64 = 365*4 + 1;
268
269        let days = (secs_since_epoch / 86400) as i64 - LEAPOCH;
270        let secs_of_day = secs_since_epoch % 86400;
271
272        let mut qc_cycles = days / DAYS_PER_400Y;
273        let mut remdays = days % DAYS_PER_400Y;
274
275        if remdays < 0 {
276            remdays += DAYS_PER_400Y;
277            qc_cycles -= 1;
278        }
279
280        let mut c_cycles = remdays / DAYS_PER_100Y;
281        if c_cycles == 4 { c_cycles -= 1; }
282        remdays -= c_cycles * DAYS_PER_100Y;
283
284        let mut q_cycles = remdays / DAYS_PER_4Y;
285        if q_cycles == 25 { q_cycles -= 1; }
286        remdays -= q_cycles * DAYS_PER_4Y;
287
288        let mut remyears = remdays / 365;
289        if remyears == 4 { remyears -= 1; }
290        remdays -= remyears * 365;
291
292        let mut year = 2000 +
293            remyears + 4*q_cycles + 100*c_cycles + 400*qc_cycles;
294
295        let months = [31,30,31,30,31,31,30,31,30,31,31,29];
296        let mut mon = 0;
297        for mon_len in months.iter() {
298            mon += 1;
299            if remdays < *mon_len {
300                break;
301            }
302            remdays -= *mon_len;
303        }
304        let mday = remdays+1;
305        let mon = if mon + 2 > 12 {
306            year += 1;
307            mon - 10
308        } else {
309            mon + 2
310        };
311
312        let mut buf: [u8; 30] = [
313            // Too long to write as: b"0000-00-00T00:00:00.000000000Z"
314            b'0', b'0', b'0', b'0', b'-', b'0', b'0', b'-', b'0', b'0', b'T',
315            b'0', b'0', b':', b'0', b'0', b':', b'0', b'0',
316            b'.', b'0', b'0', b'0', b'0', b'0', b'0', b'0', b'0', b'0', b'Z',
317        ];
318        buf[0] = b'0' + (year / 1000) as u8;
319        buf[1] = b'0' + (year / 100 % 10) as u8;
320        buf[2] = b'0' + (year / 10 % 10) as u8;
321        buf[3] = b'0' + (year % 10) as u8;
322        buf[5] = b'0' + (mon / 10) as u8;
323        buf[6] = b'0' + (mon % 10) as u8;
324        buf[8] = b'0' + (mday / 10) as u8;
325        buf[9] = b'0' + (mday % 10) as u8;
326        buf[11] = b'0' + (secs_of_day / 3600 / 10) as u8;
327        buf[12] = b'0' + (secs_of_day / 3600 % 10) as u8;
328        buf[14] = b'0' + (secs_of_day / 60 / 10 % 6) as u8;
329        buf[15] = b'0' + (secs_of_day / 60 % 10) as u8;
330        buf[17] = b'0' + (secs_of_day / 10 % 6) as u8;
331        buf[18] = b'0' + (secs_of_day % 10) as u8;
332
333        let offset = if self.1 == Seconds || nanos == 0 && self.1 == Smart {
334            buf[19] = b'Z';
335            19
336        } else if self.1 == Millis {
337            buf[20] = b'0' + (nanos / 100_000_000) as u8;
338            buf[21] = b'0' + (nanos / 10_000_000 % 10) as u8;
339            buf[22] = b'0' + (nanos / 1_000_000 % 10) as u8;
340            buf[23] = b'Z';
341            23
342        } else if self.1 == Micros {
343            buf[20] = b'0' + (nanos / 100_000_000) as u8;
344            buf[21] = b'0' + (nanos / 10_000_000 % 10) as u8;
345            buf[22] = b'0' + (nanos / 1_000_000 % 10) as u8;
346            buf[23] = b'0' + (nanos / 100_000 % 10) as u8;
347            buf[24] = b'0' + (nanos / 10_000 % 10) as u8;
348            buf[25] = b'0' + (nanos / 1_000 % 10) as u8;
349            buf[26] = b'Z';
350            26
351        } else {
352            buf[20] = b'0' + (nanos / 100_000_000) as u8;
353            buf[21] = b'0' + (nanos / 10_000_000 % 10) as u8;
354            buf[22] = b'0' + (nanos / 1_000_000 % 10) as u8;
355            buf[23] = b'0' + (nanos / 100_000 % 10) as u8;
356            buf[24] = b'0' + (nanos / 10_000 % 10) as u8;
357            buf[25] = b'0' + (nanos / 1_000 % 10) as u8;
358            buf[26] = b'0' + (nanos / 100 % 10) as u8;
359            buf[27] = b'0' + (nanos / 10 % 10) as u8;
360            buf[28] = b'0' + (nanos / 1 % 10) as u8;
361            // 29th is 'Z'
362            29
363        };
364
365        // we know our chars are all ascii
366        f.write_str(str::from_utf8(&buf[..=offset]).expect("Conversion to utf8 failed"))
367    }
368}
369
370#[cfg(test)]
371mod test {
372    use std::str::from_utf8;
373    use std::time::{UNIX_EPOCH, SystemTime, Duration};
374
375    use rand::Rng;
376
377    use super::{parse_rfc3339, parse_rfc3339_weak, format_rfc3339};
378    use super::{format_rfc3339_millis, format_rfc3339_micros};
379    use super::{format_rfc3339_nanos};
380    use super::max;
381
382    fn from_sec(sec: u64) -> (String, SystemTime) {
383        let s = time::at_utc(time::Timespec { sec: sec as i64, nsec: 0 })
384                  .rfc3339().to_string();
385        let time = UNIX_EPOCH + Duration::new(sec, 0);
386        (s, time)
387    }
388
389    #[test]
390    #[cfg(all(target_pointer_width="32", target_os="linux"))]
391    fn year_after_2038_fails_gracefully() {
392        // next second
393        assert_eq!(parse_rfc3339("2038-01-19T03:14:08Z").unwrap_err(),
394                   super::Error::OutOfRange);
395        assert_eq!(parse_rfc3339("9999-12-31T23:59:59Z").unwrap_err(),
396                   super::Error::OutOfRange);
397    }
398
399    #[test]
400    fn smoke_tests_parse() {
401        assert_eq!(parse_rfc3339("1970-01-01T00:00:00Z").unwrap(),
402                   UNIX_EPOCH + Duration::new(0, 0));
403        assert_eq!(parse_rfc3339("1970-01-01T00:00:01Z").unwrap(),
404                   UNIX_EPOCH + Duration::new(1, 0));
405        assert_eq!(parse_rfc3339("2018-02-13T23:08:32Z").unwrap(),
406                   UNIX_EPOCH + Duration::new(1_518_563_312, 0));
407        assert_eq!(parse_rfc3339("2012-01-01T00:00:00Z").unwrap(),
408                   UNIX_EPOCH + Duration::new(1_325_376_000, 0));
409    }
410
411    #[test]
412    fn smoke_tests_format() {
413        assert_eq!(
414            format_rfc3339(UNIX_EPOCH + Duration::new(0, 0)).to_string(),
415            "1970-01-01T00:00:00Z");
416        assert_eq!(
417            format_rfc3339(UNIX_EPOCH + Duration::new(1, 0)).to_string(),
418            "1970-01-01T00:00:01Z");
419        assert_eq!(
420            format_rfc3339(UNIX_EPOCH + Duration::new(1_518_563_312, 0)).to_string(),
421            "2018-02-13T23:08:32Z");
422        assert_eq!(
423            format_rfc3339(UNIX_EPOCH + Duration::new(1_325_376_000, 0)).to_string(),
424            "2012-01-01T00:00:00Z");
425    }
426
427    #[test]
428    fn smoke_tests_format_millis() {
429        assert_eq!(
430            format_rfc3339_millis(UNIX_EPOCH +
431                Duration::new(0, 0)).to_string(),
432            "1970-01-01T00:00:00.000Z");
433        assert_eq!(
434            format_rfc3339_millis(UNIX_EPOCH +
435                Duration::new(1_518_563_312, 123_000_000)).to_string(),
436            "2018-02-13T23:08:32.123Z");
437    }
438
439    #[test]
440    fn smoke_tests_format_micros() {
441        assert_eq!(
442            format_rfc3339_micros(UNIX_EPOCH +
443                Duration::new(0, 0)).to_string(),
444            "1970-01-01T00:00:00.000000Z");
445        assert_eq!(
446            format_rfc3339_micros(UNIX_EPOCH +
447                Duration::new(1_518_563_312, 123_000_000)).to_string(),
448            "2018-02-13T23:08:32.123000Z");
449        assert_eq!(
450            format_rfc3339_micros(UNIX_EPOCH +
451                Duration::new(1_518_563_312, 456_123_000)).to_string(),
452            "2018-02-13T23:08:32.456123Z");
453    }
454
455    #[test]
456    fn smoke_tests_format_nanos() {
457        assert_eq!(
458            format_rfc3339_nanos(UNIX_EPOCH +
459                Duration::new(0, 0)).to_string(),
460            "1970-01-01T00:00:00.000000000Z");
461        assert_eq!(
462            format_rfc3339_nanos(UNIX_EPOCH +
463                Duration::new(1_518_563_312, 123_000_000)).to_string(),
464            "2018-02-13T23:08:32.123000000Z");
465        assert_eq!(
466            format_rfc3339_nanos(UNIX_EPOCH +
467                Duration::new(1_518_563_312, 789_456_123)).to_string(),
468            "2018-02-13T23:08:32.789456123Z");
469    }
470
471    #[test]
472    fn upper_bound() {
473        let max = UNIX_EPOCH + Duration::new(max::SECONDS, 0);
474        assert_eq!(parse_rfc3339(&max::TIMESTAMP).unwrap(), max);
475        assert_eq!(format_rfc3339(max).to_string(), max::TIMESTAMP);
476    }
477
478    #[test]
479    fn leap_second() {
480        assert_eq!(parse_rfc3339("2016-12-31T23:59:60Z").unwrap(),
481                   UNIX_EPOCH + Duration::new(1_483_228_799, 0));
482    }
483
484    #[test]
485    fn first_731_days() {
486        let year_start = 0;  // 1970
487        for day in 0..= 365 * 2 {  // scan leap year and non-leap year
488            let (s, time) = from_sec(year_start + day * 86400);
489            assert_eq!(parse_rfc3339(&s).unwrap(), time);
490            assert_eq!(format_rfc3339(time).to_string(), s);
491        }
492    }
493
494    #[test]
495    fn the_731_consecutive_days() {
496        let year_start = 1_325_376_000;  // 2012
497        for day in 0..= 365 * 2 {  // scan leap year and non-leap year
498            let (s, time) = from_sec(year_start + day * 86400);
499            assert_eq!(parse_rfc3339(&s).unwrap(), time);
500            assert_eq!(format_rfc3339(time).to_string(), s);
501        }
502    }
503
504    #[test]
505    fn all_86400_seconds() {
506        let day_start = 1_325_376_000;
507        for second in 0..86400 {  // scan leap year and non-leap year
508            let (s, time) = from_sec(day_start + second);
509            assert_eq!(parse_rfc3339(&s).unwrap(), time);
510            assert_eq!(format_rfc3339(time).to_string(), s);
511        }
512    }
513
514    #[test]
515    fn random_past() {
516        let upper = SystemTime::now().duration_since(UNIX_EPOCH).unwrap()
517            .as_secs();
518        for _ in 0..10000 {
519            let sec = rand::thread_rng().gen_range(0, upper);
520            let (s, time) = from_sec(sec);
521            assert_eq!(parse_rfc3339(&s).unwrap(), time);
522            assert_eq!(format_rfc3339(time).to_string(), s);
523        }
524    }
525
526    #[test]
527    fn random_wide_range() {
528        for _ in 0..100_000 {
529            let sec = rand::thread_rng().gen_range(0, max::SECONDS);
530            let (s, time) = from_sec(sec);
531            assert_eq!(parse_rfc3339(&s).unwrap(), time);
532            assert_eq!(format_rfc3339(time).to_string(), s);
533        }
534    }
535
536    #[test]
537    fn milliseconds() {
538        assert_eq!(parse_rfc3339("1970-01-01T00:00:00.123Z").unwrap(),
539                   UNIX_EPOCH + Duration::new(0, 123_000_000));
540        assert_eq!(format_rfc3339(UNIX_EPOCH + Duration::new(0, 123_000_000))
541            .to_string(), "1970-01-01T00:00:00.123000000Z");
542    }
543
544    #[test]
545    #[should_panic(expected="OutOfRange")]
546    fn zero_month() {
547        parse_rfc3339("1970-00-01T00:00:00Z").unwrap();
548    }
549
550    #[test]
551    #[should_panic(expected="OutOfRange")]
552    fn big_month() {
553        parse_rfc3339("1970-32-01T00:00:00Z").unwrap();
554    }
555
556    #[test]
557    #[should_panic(expected="OutOfRange")]
558    fn zero_day() {
559        parse_rfc3339("1970-01-00T00:00:00Z").unwrap();
560    }
561
562    #[test]
563    #[should_panic(expected="OutOfRange")]
564    fn big_day() {
565        parse_rfc3339("1970-12-35T00:00:00Z").unwrap();
566    }
567
568    #[test]
569    #[should_panic(expected="OutOfRange")]
570    fn big_day2() {
571        parse_rfc3339("1970-02-30T00:00:00Z").unwrap();
572    }
573
574    #[test]
575    #[should_panic(expected="OutOfRange")]
576    fn big_second() {
577        parse_rfc3339("1970-12-30T00:00:78Z").unwrap();
578    }
579
580    #[test]
581    #[should_panic(expected="OutOfRange")]
582    fn big_minute() {
583        parse_rfc3339("1970-12-30T00:78:00Z").unwrap();
584    }
585
586    #[test]
587    #[should_panic(expected="OutOfRange")]
588    fn big_hour() {
589        parse_rfc3339("1970-12-30T24:00:00Z").unwrap();
590    }
591
592    #[test]
593    fn break_data() {
594        for pos in 0.."2016-12-31T23:59:60Z".len() {
595            let mut s = b"2016-12-31T23:59:60Z".to_vec();
596            s[pos] = b'x';
597            parse_rfc3339(from_utf8(&s).unwrap()).unwrap_err();
598        }
599    }
600
601    #[test]
602    fn weak_smoke_tests() {
603        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00").unwrap(),
604                   UNIX_EPOCH + Duration::new(0, 0));
605        parse_rfc3339("1970-01-01 00:00:00").unwrap_err();
606
607        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00.000123").unwrap(),
608                   UNIX_EPOCH + Duration::new(0, 123_000));
609        parse_rfc3339("1970-01-01 00:00:00.000123").unwrap_err();
610
611        assert_eq!(parse_rfc3339_weak("1970-01-01T00:00:00.000123").unwrap(),
612                   UNIX_EPOCH + Duration::new(0, 123_000));
613        parse_rfc3339("1970-01-01T00:00:00.000123").unwrap_err();
614
615        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00.000123Z").unwrap(),
616                   UNIX_EPOCH + Duration::new(0, 123_000));
617        parse_rfc3339("1970-01-01 00:00:00.000123Z").unwrap_err();
618
619        assert_eq!(parse_rfc3339_weak("1970-01-01 00:00:00Z").unwrap(),
620                   UNIX_EPOCH + Duration::new(0, 0));
621        parse_rfc3339("1970-01-01 00:00:00Z").unwrap_err();
622    }
623}
humantime/date.rs

humantime/
date.rs
