Struct Date

pub struct Date(/* private fields */);

Date is a NaiveDateTime-Wrapper object to be able to implement foreign traits on it

Methods from Deref<Target = NaiveDateTime>

pub const MIN: NaiveDateTime

pub const MAX: NaiveDateTime

pub const UNIX_EPOCH: NaiveDateTime

pub fn date(&self) -> NaiveDate

Retrieves a date component.

Example

use chrono::NaiveDate;

let dt = NaiveDate::from_ymd_opt(2016, 7, 8).unwrap().and_hms_opt(9, 10, 11).unwrap();
assert_eq!(dt.date(), NaiveDate::from_ymd_opt(2016, 7, 8).unwrap());

pub fn time(&self) -> NaiveTime

Retrieves a time component.

Example

use chrono::{NaiveDate, NaiveTime};

let dt = NaiveDate::from_ymd_opt(2016, 7, 8).unwrap().and_hms_opt(9, 10, 11).unwrap();
assert_eq!(dt.time(), NaiveTime::from_hms_opt(9, 10, 11).unwrap());

pub fn timestamp(&self) -> i64

👎Deprecated since 0.4.35: use .and_utc().timestamp() instead

Returns the number of non-leap seconds since the midnight on January 1, 1970.

Note that this does not account for the timezone! The true “UNIX timestamp” would count seconds since the midnight UTC on the epoch.

pub fn timestamp_millis(&self) -> i64

👎Deprecated since 0.4.35: use .and_utc().timestamp_millis() instead

Returns the number of non-leap milliseconds since midnight on January 1, 1970.

Note that this does not account for the timezone! The true “UNIX timestamp” would count seconds since the midnight UTC on the epoch.

pub fn timestamp_micros(&self) -> i64

👎Deprecated since 0.4.35: use .and_utc().timestamp_micros() instead

Returns the number of non-leap microseconds since midnight on January 1, 1970.

Note that this does not account for the timezone! The true “UNIX timestamp” would count seconds since the midnight UTC on the epoch.

pub fn timestamp_nanos(&self) -> i64

👎Deprecated since 0.4.31: use .and_utc().timestamp_nanos_opt() instead

Returns the number of non-leap nanoseconds since midnight on January 1, 1970.

Note that this does not account for the timezone! The true “UNIX timestamp” would count seconds since the midnight UTC on the epoch.

Panics

An i64 with nanosecond precision can span a range of ~584 years. This function panics on an out of range NaiveDateTime.

The dates that can be represented as nanoseconds are between 1677-09-21T00:12:43.145224192 and 2262-04-11T23:47:16.854775807.

pub fn timestamp_nanos_opt(&self) -> Option<i64>

👎Deprecated since 0.4.35: use .and_utc().timestamp_nanos_opt() instead

Returns the number of non-leap nanoseconds since midnight on January 1, 1970.

Note that this does not account for the timezone! The true “UNIX timestamp” would count seconds since the midnight UTC on the epoch.

Errors

An i64 with nanosecond precision can span a range of ~584 years. This function returns None on an out of range NaiveDateTime.

The dates that can be represented as nanoseconds are between 1677-09-21T00:12:43.145224192 and 2262-04-11T23:47:16.854775807.

pub fn timestamp_subsec_millis(&self) -> u32

👎Deprecated since 0.4.35: use .and_utc().timestamp_subsec_millis() instead

Returns the number of milliseconds since the last whole non-leap second.

The return value ranges from 0 to 999, or for leap seconds, to 1,999.

pub fn timestamp_subsec_micros(&self) -> u32

👎Deprecated since 0.4.35: use .and_utc().timestamp_subsec_micros() instead

Returns the number of microseconds since the last whole non-leap second.

The return value ranges from 0 to 999,999, or for leap seconds, to 1,999,999.

pub fn timestamp_subsec_nanos(&self) -> u32

👎Deprecated since 0.4.36: use .and_utc().timestamp_subsec_nanos() instead

Returns the number of nanoseconds since the last whole non-leap second.

The return value ranges from 0 to 999,999,999, or for leap seconds, to 1,999,999,999.

pub fn format_with_items<'a, I, B>(&self, items: I) -> DelayedFormat<I>

where I: Iterator<Item = B> + Clone, B: Borrow<Item<'a>>,

Formats the combined date and time with the specified formatting items. Otherwise it is the same as the ordinary format method.

The Iterator of items should be Cloneable, since the resulting DelayedFormat value may be formatted multiple times.

Example

use chrono::format::strftime::StrftimeItems;
use chrono::NaiveDate;

let fmt = StrftimeItems::new("%Y-%m-%d %H:%M:%S");
let dt = NaiveDate::from_ymd_opt(2015, 9, 5).unwrap().and_hms_opt(23, 56, 4).unwrap();
assert_eq!(dt.format_with_items(fmt.clone()).to_string(), "2015-09-05 23:56:04");
assert_eq!(dt.format("%Y-%m-%d %H:%M:%S").to_string(), "2015-09-05 23:56:04");

The resulting DelayedFormat can be formatted directly via the Display trait.

assert_eq!(format!("{}", dt.format_with_items(fmt)), "2015-09-05 23:56:04");

pub fn format<'a>(&self, fmt: &'a str) -> DelayedFormat<StrftimeItems<'a>>

Formats the combined date and time with the specified format string. See the format::strftime module on the supported escape sequences.

This returns a DelayedFormat, which gets converted to a string only when actual formatting happens. You may use the to_string method to get a String, or just feed it into print! and other formatting macros. (In this way it avoids the redundant memory allocation.)

A wrong format string does not issue an error immediately. Rather, converting or formatting the DelayedFormat fails. You are recommended to immediately use DelayedFormat for this reason.

Example

use chrono::NaiveDate;

let dt = NaiveDate::from_ymd_opt(2015, 9, 5).unwrap().and_hms_opt(23, 56, 4).unwrap();
assert_eq!(dt.format("%Y-%m-%d %H:%M:%S").to_string(), "2015-09-05 23:56:04");
assert_eq!(dt.format("around %l %p on %b %-d").to_string(), "around 11 PM on Sep 5");

The resulting DelayedFormat can be formatted directly via the Display trait.

assert_eq!(format!("{}", dt.format("%Y-%m-%d %H:%M:%S")), "2015-09-05 23:56:04");
assert_eq!(format!("{}", dt.format("around %l %p on %b %-d")), "around 11 PM on Sep 5");

pub fn and_local_timezone<Tz>(&self, tz: Tz) -> LocalResult<DateTime<Tz>>

where Tz: TimeZone,

Converts the NaiveDateTime into a timezone-aware DateTime<Tz> with the provided time zone.

Example

use chrono::{FixedOffset, NaiveDate};
let hour = 3600;
let tz = FixedOffset::east_opt(5 * hour).unwrap();
let dt = NaiveDate::from_ymd_opt(2015, 9, 5)
    .unwrap()
    .and_hms_opt(23, 56, 4)
    .unwrap()
    .and_local_timezone(tz)
    .unwrap();
assert_eq!(dt.timezone(), tz);

pub fn and_utc(&self) -> DateTime<Utc>

Converts the NaiveDateTime into the timezone-aware DateTime<Utc>.

Example

use chrono::{NaiveDate, Utc};
let dt =
    NaiveDate::from_ymd_opt(2023, 1, 30).unwrap().and_hms_opt(19, 32, 33).unwrap().and_utc();
assert_eq!(dt.timezone(), Utc);

Trait Implementations

impl Clone for Date

fn clone(&self) -> Date

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Date

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Deref for Date

type Target = NaiveDateTime

The resulting type after dereferencing.

fn deref(&self) -> &NaiveDateTime

Dereferences the value.

impl DerefMut for Date

fn deref_mut(&mut self) -> &mut NaiveDateTime

Mutably dereferences the value.

impl<'de> Deserialize<'de> for Date

fn deserialize<D>(deserializer: D) -> Result<Date, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<NaiveDateTime> for Date

fn from(ndt: NaiveDateTime) -> Date

Converts to this type from the input type.

impl Hash for Date

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Date

fn eq(&self, other: &Date) -> bool

Tests for self and other values to be equal, and is used by ==.

const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Date

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Date

impl StructuralPartialEq for Date