Enum chrono::Weekday

[+] Show declaration

pub enum Weekday {
    Mon,
    Tue,
    Wed,
    Thu,
    Fri,
    Sat,
    Sun,
}

[−] Expand description

The day of week.

The order of the days of week depends on the context. (This is why this type does not implement PartialOrd or Ord traits.) One should prefer *_from_monday or *_from_sunday methods to get the correct result.

Variants

Mon

[−] Expand description

Monday.

Tue

[−] Expand description

Tuesday.

Wed

[−] Expand description

Wednesday.

Thu

[−] Expand description

Thursday.

Fri

[−] Expand description

Friday.

Sat

[−] Expand description

Saturday.

Sun

[−] Expand description

Sunday.

Methods

impl Weekday[−]

pub fn succ(&self) -> Weekday[−]

The next day in the week.

w:	Mon	Tue	Wed	Thu	Fri	Sat	Sun
w.succ():	Tue	Wed	Thu	Fri	Sat	Sun	Mon

pub fn pred(&self) -> Weekday[−]

The previous day in the week.

w:	Mon	Tue	Wed	Thu	Fri	Sat	Sun
w.pred():	Sun	Mon	Tue	Wed	Thu	Fri	Sat

pub fn number_from_monday(&self) -> u32[−]

Returns a day-of-week number starting from Monday = 1. (ISO 8601 weekday number)

w:	Mon	Tue	Wed	Thu	Fri	Sat	Sun
w.number_from_monday():	1	2	3	4	5	6	7

pub fn number_from_sunday(&self) -> u32[−]

Returns a day-of-week number starting from Sunday = 1.

w:	Mon	Tue	Wed	Thu	Fri	Sat	Sun
w.number_from_sunday():	2	3	4	5	6	7	1

pub fn num_days_from_monday(&self) -> u32[−]

Returns a day-of-week number starting from Monday = 0.

w:	Mon	Tue	Wed	Thu	Fri	Sat	Sun
w.num_days_from_monday():	0	1	2	3	4	5	6

pub fn num_days_from_sunday(&self) -> u32[−]

Returns a day-of-week number starting from Sunday = 0.

w:	Mon	Tue	Wed	Thu	Fri	Sat	Sun
w.num_days_from_sunday():	1	2	3	4	5	6	0

Trait Implementations

impl PartialEq<Weekday> for Weekday[+]

[+] Show hidden undocumented items

fn eq(&self, other: &Weekday) -> bool[−]

This method tests for self and other values to be equal, and is used by ==.

[+] Expand attributes

#[must_use]

fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl Clone for Weekday[+]

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fn clone(&self) -> Weekday[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Eq for Weekday

impl Copy for Weekday

impl Debug for Weekday[+]

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fn fmt(&self, f: &mut Formatter) -> Result[−]

Formats the value using the given formatter.

impl Hash for Weekday[+]

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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, [−]

Feeds a slice of this type into the given [Hasher].

impl FromStr for Weekday[+]

Parsing a str into a Weekday uses the format %W.

Example

use chrono::Weekday;

assert_eq!("Sunday".parse::<Weekday>(), Ok(Weekday::Sun));
assert!("any day".parse::<Weekday>().is_err());

The parsing is case-insensitive.

assert_eq!("mON".parse::<Weekday>(), Ok(Weekday::Mon));

Only the shortest form (e.g. sun) and the longest form (e.g. sunday) is accepted.

assert!("thurs".parse::<Weekday>().is_err());

[+] Show hidden undocumented items

type Err = ParseWeekdayError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>[−]

Parses a string s to return a value of this type.

impl FromPrimitive for Weekday[+]

Any weekday can be represented as an integer from 0 to 6, which equals to Weekday::num_days_from_monday in this implementation. Do not heavily depend on this though; use explicit methods whenever possible.

[+] Show hidden undocumented items

fn from_i64(n: i64) -> Option<Weekday>[−]

Convert an i64 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u64(n: u64) -> Option<Weekday>[−]

Convert an u64 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_isize(n: isize) -> Option<Self>[−]

Convert an isize to return an optional value of this type. If the value cannot be represented by this value, then None is returned.

fn from_i8(n: i8) -> Option<Self>[−]

Convert an i8 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_i16(n: i16) -> Option<Self>[−]

Convert an i16 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_i32(n: i32) -> Option<Self>[−]

Convert an i32 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_i128(n: i128) -> Option<Self>[−]

Convert an i128 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_usize(n: usize) -> Option<Self>[−]

Convert a usize to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u8(n: u8) -> Option<Self>[−]

Convert an u8 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u16(n: u16) -> Option<Self>[−]

Convert an u16 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u32(n: u32) -> Option<Self>[−]

Convert an u32 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u128(n: u128) -> Option<Self>[−]

Convert an u128 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_f32(n: f32) -> Option<Self>[−]

Convert a f32 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_f64(n: f64) -> Option<Self>[−]

Convert a f64 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.