Struct chrono::DateTime [−][src]
pub struct DateTime<Tz: TimeZone> { /* fields omitted */ }
ISO 8601 combined date and time with time zone.
There are some constructors implemented here (the from_*
methods), but
the general-purpose constructors are all via the methods on the
TimeZone
implementations.
Implementations
impl<Tz: TimeZone> DateTime<Tz>
[src]
impl<Tz: TimeZone> DateTime<Tz>
[src]pub fn from_utc(datetime: NaiveDateTime, offset: Tz::Offset) -> DateTime<Tz>
[src]
Makes a new DateTime
with given UTC datetime and offset.
The local datetime should be constructed via the TimeZone
trait.
Example
use chrono::{DateTime, TimeZone, NaiveDateTime, Utc}; let dt = DateTime::<Utc>::from_utc(NaiveDateTime::from_timestamp(61, 0), Utc); assert_eq!(Utc.timestamp(61, 0), dt);
pub fn date(&self) -> Date<Tz>
[src]
Retrieves a date component.
pub fn time(&self) -> NaiveTime
[src]
Retrieves a time component.
Unlike date
, this is not associated to the time zone.
pub fn timestamp(&self) -> i64
[src]
Returns the number of non-leap seconds since January 1, 1970 0:00:00 UTC (aka “UNIX timestamp”).
pub fn timestamp_millis(&self) -> i64
[src]
Returns the number of non-leap-milliseconds since January 1, 1970 UTC
Note that this does reduce the number of years that can be represented from ~584 Billion to ~584 Million. (If this is a problem, please file an issue to let me know what domain needs millisecond precision over billions of years, I’m curious.)
Example
use chrono::Utc; use chrono::TimeZone; let dt = Utc.ymd(1970, 1, 1).and_hms_milli(0, 0, 1, 444); assert_eq!(dt.timestamp_millis(), 1_444); let dt = Utc.ymd(2001, 9, 9).and_hms_milli(1, 46, 40, 555); assert_eq!(dt.timestamp_millis(), 1_000_000_000_555);
pub fn timestamp_nanos(&self) -> i64
[src]
Returns the number of non-leap-nanoseconds since January 1, 1970 UTC
Note that this does reduce the number of years that can be represented from ~584 Billion to ~584. (If this is a problem, please file an issue to let me know what domain needs nanosecond precision over millennia, I’m curious.)
Example
use chrono::Utc; use chrono::TimeZone; let dt = Utc.ymd(1970, 1, 1).and_hms_nano(0, 0, 1, 444); assert_eq!(dt.timestamp_nanos(), 1_000_000_444); let dt = Utc.ymd(2001, 9, 9).and_hms_nano(1, 46, 40, 555); assert_eq!(dt.timestamp_nanos(), 1_000_000_000_000_000_555);
pub fn timestamp_subsec_millis(&self) -> u32
[src]
Returns the number of milliseconds since the last second boundary
warning: in event of a leap second, this may exceed 999
note: this is not the number of milliseconds since January 1, 1970 0:00:00 UTC
pub fn timestamp_subsec_micros(&self) -> u32
[src]
Returns the number of microseconds since the last second boundary
warning: in event of a leap second, this may exceed 999_999
note: this is not the number of microseconds since January 1, 1970 0:00:00 UTC
pub fn timestamp_subsec_nanos(&self) -> u32
[src]
Returns the number of nanoseconds since the last second boundary
warning: in event of a leap second, this may exceed 999_999_999
note: this is not the number of nanoseconds since January 1, 1970 0:00:00 UTC
pub fn offset(&self) -> &Tz::Offset
[src]
Retrieves an associated offset from UTC.
pub fn timezone(&self) -> Tz
[src]
Retrieves an associated time zone.
pub fn with_timezone<Tz2: TimeZone>(&self, tz: &Tz2) -> DateTime<Tz2>
[src]
Changes the associated time zone.
This does not change the actual DateTime
(but will change the string representation).
pub fn checked_add_signed(self, rhs: OldDuration) -> Option<DateTime<Tz>>
[src]
Adds given Duration
to the current date and time.
Returns None
when it will result in overflow.
pub fn checked_sub_signed(self, rhs: OldDuration) -> Option<DateTime<Tz>>
[src]
Subtracts given Duration
from the current date and time.
Returns None
when it will result in overflow.
pub fn signed_duration_since<Tz2: TimeZone>(
self,
rhs: DateTime<Tz2>
) -> OldDuration
[src]
self,
rhs: DateTime<Tz2>
) -> OldDuration
Subtracts another DateTime
from the current date and time.
This does not overflow or underflow at all.
pub fn naive_utc(&self) -> NaiveDateTime
[src]
Returns a view to the naive UTC datetime.
pub fn naive_local(&self) -> NaiveDateTime
[src]
Returns a view to the naive local datetime.
impl DateTime<FixedOffset>
[src]
impl DateTime<FixedOffset>
[src]pub fn parse_from_rfc2822(s: &str) -> ParseResult<DateTime<FixedOffset>>
[src]
Parses an RFC 2822 date and time string such as Tue, 1 Jul 2003 10:52:37 +0200
,
then returns a new DateTime
with a parsed FixedOffset
.
RFC 2822 is the internet message standard that specifices the representation of times in HTTP and email headers.
assert_eq!( DateTime::parse_from_rfc2822("Wed, 18 Feb 2015 23:16:09 GMT").unwrap(), FixedOffset::east(0).ymd(2015, 2, 18).and_hms(23, 16, 9) );
pub fn parse_from_rfc3339(s: &str) -> ParseResult<DateTime<FixedOffset>>
[src]
Parses an RFC 3339 and ISO 8601 date and time string such as 1996-12-19T16:39:57-08:00
,
then returns a new DateTime
with a parsed FixedOffset
.
Why isn’t this named parse_from_iso8601
? That’s because ISO 8601 allows some freedom
over the syntax and RFC 3339 exercises that freedom to rigidly define a fixed format.
pub fn parse_from_str(s: &str, fmt: &str) -> ParseResult<DateTime<FixedOffset>>
[src]
Parses a string with the specified format string and
returns a new DateTime
with a parsed FixedOffset
.
See the format::strftime
module
on the supported escape sequences.
See also Offset::datetime_from_str
which gives a local DateTime
on specific time zone.
Note that this method requires a timezone in the string. See
NaiveDateTime::parse_from_str
for a version that does not require a timezone in the to-be-parsed str.
Example
use chrono::{DateTime, FixedOffset, TimeZone}; let dt = DateTime::parse_from_str( "1983 Apr 13 12:09:14.274 +0000", "%Y %b %d %H:%M:%S%.3f %z"); assert_eq!(dt, Ok(FixedOffset::east(0).ymd(1983, 4, 13).and_hms_milli(12, 9, 14, 274)));
impl<Tz: TimeZone> DateTime<Tz> where
Tz::Offset: Display,
[src]
impl<Tz: TimeZone> DateTime<Tz> where
Tz::Offset: Display,
[src]pub fn to_rfc2822(&self) -> String
[src]
Returns an RFC 2822 date and time string such as Tue, 1 Jul 2003 10:52:37 +0200
.
pub fn to_rfc3339(&self) -> String
[src]
Returns an RFC 3339 and ISO 8601 date and time string such as 1996-12-19T16:39:57-08:00
.
pub fn to_rfc3339_opts(&self, secform: SecondsFormat, use_z: bool) -> String
[src]
Return an RFC 3339 and ISO 8601 date and time string with subseconds
formatted as per a SecondsFormat
. If passed use_z
true and the
timezone is UTC (offset 0), use ‘Z’, as per
Fixed::TimezoneOffsetColonZ.
If passed use_z
false, use
Fixed::TimezoneOffsetColon.
Examples
let dt = Utc.ymd(2018, 1, 26).and_hms_micro(18, 30, 9, 453_829); assert_eq!(dt.to_rfc3339_opts(SecondsFormat::Millis, false), "2018-01-26T18:30:09.453+00:00"); assert_eq!(dt.to_rfc3339_opts(SecondsFormat::Millis, true), "2018-01-26T18:30:09.453Z"); assert_eq!(dt.to_rfc3339_opts(SecondsFormat::Secs, true), "2018-01-26T18:30:09Z"); let pst = FixedOffset::east(8 * 60 * 60); let dt = pst.ymd(2018, 1, 26).and_hms_micro(10, 30, 9, 453_829); assert_eq!(dt.to_rfc3339_opts(SecondsFormat::Secs, true), "2018-01-26T10:30:09+08:00");
pub fn format_with_items<'a, I, B>(&self, items: I) -> DelayedFormat<I> where
I: Iterator<Item = B> + Clone,
B: Borrow<Item<'a>>,
[src]
I: Iterator<Item = B> + Clone,
B: Borrow<Item<'a>>,
Formats the combined date and time with the specified formatting items.
pub fn format<'a>(&self, fmt: &'a str) -> DelayedFormat<StrftimeItems<'a>>
[src]
Formats the combined date and time with the specified format string.
See the format::strftime
module
on the supported escape sequences.
Trait Implementations
impl<Tz: TimeZone> Add<FixedOffset> for DateTime<Tz>
[src]
impl<Tz: TimeZone> Add<FixedOffset> for DateTime<Tz>
[src]impl<Tz: TimeZone> Datelike for DateTime<Tz>
[src]
impl<Tz: TimeZone> Datelike for DateTime<Tz>
[src]fn year(&self) -> i32
[src]
fn month(&self) -> u32
[src]
fn month0(&self) -> u32
[src]
fn day(&self) -> u32
[src]
fn day0(&self) -> u32
[src]
fn ordinal(&self) -> u32
[src]
fn ordinal0(&self) -> u32
[src]
fn weekday(&self) -> Weekday
[src]
fn iso_week(&self) -> IsoWeek
[src]
fn with_year(&self, year: i32) -> Option<DateTime<Tz>>
[src]
fn with_month(&self, month: u32) -> Option<DateTime<Tz>>
[src]
fn with_month0(&self, month0: u32) -> Option<DateTime<Tz>>
[src]
fn with_day(&self, day: u32) -> Option<DateTime<Tz>>
[src]
fn with_day0(&self, day0: u32) -> Option<DateTime<Tz>>
[src]
fn with_ordinal(&self, ordinal: u32) -> Option<DateTime<Tz>>
[src]
fn with_ordinal0(&self, ordinal0: u32) -> Option<DateTime<Tz>>
[src]
fn year_ce(&self) -> (bool, u32)
[src]
fn num_days_from_ce(&self) -> i32
[src]
impl<Tz: TimeZone> DurationRound for DateTime<Tz>
[src]
impl<Tz: TimeZone> DurationRound for DateTime<Tz>
[src]type Err = RoundingError
Error that can occur in rounding or truncating
fn duration_round(self, duration: Duration) -> Result<Self, Self::Err>
[src]
fn duration_trunc(self, duration: Duration) -> Result<Self, Self::Err>
[src]
impl From<DateTime<FixedOffset>> for DateTime<Utc>
[src]
impl From<DateTime<FixedOffset>> for DateTime<Utc>
[src]Convert a DateTime<FixedOffset>
instance into a DateTime<Utc>
instance.
fn from(src: DateTime<FixedOffset>) -> Self
[src]
Convert this DateTime<FixedOffset>
instance into a DateTime<Utc>
instance.
Conversion is performed via DateTime::with_timezone
, accounting for the timezone
difference.
impl From<DateTime<FixedOffset>> for DateTime<Local>
[src]
impl From<DateTime<FixedOffset>> for DateTime<Local>
[src]Convert a DateTime<FixedOffset>
instance into a DateTime<Local>
instance.
fn from(src: DateTime<FixedOffset>) -> Self
[src]
Convert this DateTime<FixedOffset>
instance into a DateTime<Local>
instance.
Conversion is performed via DateTime::with_timezone
. Returns the equivalent value in local
time.
impl From<DateTime<Local>> for DateTime<Utc>
[src]
impl From<DateTime<Local>> for DateTime<Utc>
[src]Convert a DateTime<Local>
instance into a DateTime<Utc>
instance.
fn from(src: DateTime<Local>) -> Self
[src]
Convert this DateTime<Local>
instance into a DateTime<Utc>
instance.
Conversion is performed via DateTime::with_timezone
, accounting for the difference in
timezones.
impl From<DateTime<Local>> for DateTime<FixedOffset>
[src]
impl From<DateTime<Local>> for DateTime<FixedOffset>
[src]Convert a DateTime<Local>
instance into a DateTime<FixedOffset>
instance.
fn from(src: DateTime<Local>) -> Self
[src]
Convert this DateTime<Local>
instance into a DateTime<FixedOffset>
instance.
Conversion is performed via DateTime::with_timezone
. Note that the converted value returned
by this will be created with a fixed timezone offset of 0.
impl<Tz: TimeZone> From<DateTime<Tz>> for SystemTime
[src]
impl<Tz: TimeZone> From<DateTime<Tz>> for SystemTime
[src]fn from(dt: DateTime<Tz>) -> SystemTime
[src]
impl From<DateTime<Utc>> for DateTime<FixedOffset>
[src]
impl From<DateTime<Utc>> for DateTime<FixedOffset>
[src]Convert a DateTime<Utc>
instance into a DateTime<FixedOffset>
instance.
fn from(src: DateTime<Utc>) -> Self
[src]
Convert this DateTime<Utc>
instance into a DateTime<FixedOffset>
instance.
Conversion is done via DateTime::with_timezone
. Note that the converted value returned by
this will be created with a fixed timezone offset of 0.
impl From<DateTime<Utc>> for DateTime<Local>
[src]
impl From<DateTime<Utc>> for DateTime<Local>
[src]Convert a DateTime<Utc>
instance into a DateTime<Local>
instance.
fn from(src: DateTime<Utc>) -> Self
[src]
Convert this DateTime<Utc>
instance into a DateTime<Local>
instance.
Conversion is performed via DateTime::with_timezone
, accounting for the difference in timezones.
impl From<SystemTime> for DateTime<Utc>
[src]
impl From<SystemTime> for DateTime<Utc>
[src]fn from(t: SystemTime) -> DateTime<Utc>
[src]
impl From<SystemTime> for DateTime<Local>
[src]
impl From<SystemTime> for DateTime<Local>
[src]fn from(t: SystemTime) -> DateTime<Local>
[src]
impl FromStr for DateTime<Utc>
[src]
impl FromStr for DateTime<Utc>
[src]type Err = ParseError
The associated error which can be returned from parsing.
fn from_str(s: &str) -> ParseResult<DateTime<Utc>>
[src]
impl FromStr for DateTime<Local>
[src]
impl FromStr for DateTime<Local>
[src]type Err = ParseError
The associated error which can be returned from parsing.
fn from_str(s: &str) -> ParseResult<DateTime<Local>>
[src]
impl FromStr for DateTime<FixedOffset>
[src]
impl FromStr for DateTime<FixedOffset>
[src]type Err = ParseError
The associated error which can be returned from parsing.
fn from_str(s: &str) -> ParseResult<DateTime<FixedOffset>>
[src]
impl<Tz: TimeZone, Tz2: TimeZone> PartialOrd<DateTime<Tz2>> for DateTime<Tz>
[src]
impl<Tz: TimeZone, Tz2: TimeZone> PartialOrd<DateTime<Tz2>> for DateTime<Tz>
[src]fn partial_cmp(&self, other: &DateTime<Tz2>) -> Option<Ordering>
[src]
Compare two DateTimes based on their true time, ignoring time zones
Example
use chrono::prelude::*; let earlier = Utc.ymd(2015, 5, 15).and_hms(2, 0, 0).with_timezone(&FixedOffset::west(1 * 3600)); let later = Utc.ymd(2015, 5, 15).and_hms(3, 0, 0).with_timezone(&FixedOffset::west(5 * 3600)); assert_eq!(earlier.to_string(), "2015-05-15 01:00:00 -01:00"); assert_eq!(later.to_string(), "2015-05-14 22:00:00 -05:00"); assert!(later > earlier);
#[must_use]pub fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn le(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn gt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn ge(&self, other: &Rhs) -> bool
1.0.0[src]
impl<Tz: TimeZone> Sub<DateTime<Tz>> for DateTime<Tz>
[src]
impl<Tz: TimeZone> Sub<DateTime<Tz>> for DateTime<Tz>
[src]type Output = OldDuration
The resulting type after applying the -
operator.
fn sub(self, rhs: DateTime<Tz>) -> OldDuration
[src]
impl<Tz: TimeZone> Sub<FixedOffset> for DateTime<Tz>
[src]
impl<Tz: TimeZone> Sub<FixedOffset> for DateTime<Tz>
[src]impl<Tz: TimeZone> Timelike for DateTime<Tz>
[src]
impl<Tz: TimeZone> Timelike for DateTime<Tz>
[src]fn hour(&self) -> u32
[src]
fn minute(&self) -> u32
[src]
fn second(&self) -> u32
[src]
fn nanosecond(&self) -> u32
[src]
fn with_hour(&self, hour: u32) -> Option<DateTime<Tz>>
[src]
fn with_minute(&self, min: u32) -> Option<DateTime<Tz>>
[src]
fn with_second(&self, sec: u32) -> Option<DateTime<Tz>>
[src]
fn with_nanosecond(&self, nano: u32) -> Option<DateTime<Tz>>
[src]
fn hour12(&self) -> (bool, u32)
[src]
fn num_seconds_from_midnight(&self) -> u32
[src]
impl<Tz: TimeZone> Copy for DateTime<Tz> where
<Tz as TimeZone>::Offset: Copy,
[src]
<Tz as TimeZone>::Offset: Copy,
impl<Tz: TimeZone> Eq for DateTime<Tz>
[src]
impl<Tz: TimeZone> Send for DateTime<Tz> where
<Tz as TimeZone>::Offset: Send,
[src]
<Tz as TimeZone>::Offset: Send,
Auto Trait Implementations
impl<Tz> RefUnwindSafe for DateTime<Tz> where
<Tz as TimeZone>::Offset: RefUnwindSafe,
<Tz as TimeZone>::Offset: RefUnwindSafe,
impl<Tz> Sync for DateTime<Tz> where
<Tz as TimeZone>::Offset: Sync,
<Tz as TimeZone>::Offset: Sync,
impl<Tz> Unpin for DateTime<Tz> where
<Tz as TimeZone>::Offset: Unpin,
<Tz as TimeZone>::Offset: Unpin,
impl<Tz> UnwindSafe for DateTime<Tz> where
<Tz as TimeZone>::Offset: UnwindSafe,
<Tz as TimeZone>::Offset: UnwindSafe,