Struct DateTime

pub struct DateTime { /* private fields */ }

Representation of a moment in time.

Zip files use an old format from DOS to store timestamps, with its own set of peculiarities. For example, it has a resolution of 2 seconds!

A DateTime can be stored directly in a zipfile with FileOptions::last_modified_time, or read from one with ZipFile::last_modified

Warning

Because there is no timezone associated with the DateTime, they should ideally only be used for user-facing descriptions. This also means DateTime::to_time returns an OffsetDateTime (which is the equivalent of chrono’s NaiveDateTime).

Modern zip files store more precise timestamps, which are ignored by crate::read::ZipArchive, so keep in mind that these timestamps are unreliable. We’re working on this.

Implementations

impl DateTime

pub const YEAR_RANGE: RangeInclusive<u16>

The allowed range for years in a zip file’s timestamp.

pub const MONTH_RANGE: RangeInclusive<u8>

The allowed range for months in a zip file’s timestamp.

pub const DAY_RANGE: RangeInclusive<u8>

The allowed range for days in a zip file’s timestamp.

pub const HOUR_RANGE: Range<u8>

The allowed range for hours in a zip file’s timestamp.

pub const MINUTE_RANGE: Range<u8>

The allowed range for minutes in a zip file’s timestamp.

pub const SECOND_RANGE: RangeInclusive<u8>

The allowed range for seconds in a zip file’s timestamp.

pub const fn zero() -> Self

Constructs a ‘default’ datetime of 1980-01-01 00:00:00

pub fn from_msdos(datepart: u16, timepart: u16) -> DateTime

Converts an msdos (u16, u16) pair to a DateTime object

pub fn from_date_and_time( year: u16, month: u8, day: u8, hour: u8, minute: u8, second: u8, ) -> Result<DateTime, DateTimeRangeError>

Constructs a DateTime from a specific date and time

The bounds are:

• year: [1980, 2107]
• month: [1, 12]
• day: [1, 31]
• hour: [0, 23]
• minute: [0, 59]
• second: [0, 60]

pub fn timepart(&self) -> u16

Gets the time portion of this datetime in the msdos representation

pub fn datepart(&self) -> u16

Gets the date portion of this datetime in the msdos representation

pub fn to_time( &self, offset: UtcOffset, ) -> Result<OffsetDateTime, ComponentRange>

Available on crate feature time only.

Converts the DateTime to a OffsetDateTime structure, given a UTC offset.

pub fn year(&self) -> u16

Get the year. There is no epoch, i.e. 2018 will be returned as 2018.

pub fn month(&self) -> u8

Get the month, where 1 = january and 12 = december

Warning

When read from a zip file, this may not be a reasonable value

pub fn day(&self) -> u8

Get the day

Warning

When read from a zip file, this may not be a reasonable value

pub fn hour(&self) -> u8

Get the hour

Warning

When read from a zip file, this may not be a reasonable value

pub fn minute(&self) -> u8

Get the minute

Warning

When read from a zip file, this may not be a reasonable value

pub fn second(&self) -> u8

Get the second

Warning

When read from a zip file, this may not be a reasonable value

Trait Implementations

impl Clone for DateTime

fn clone(&self) -> DateTime

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DateTime

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

Formats the value using the given formatter.

impl Default for DateTime

fn default() -> DateTime

Returns the “default value” for a type.

impl TryFrom<OffsetDateTime> for DateTime

Available on crate feature time only.

type Error = DateTimeRangeError

The type returned in the event of a conversion error.

fn try_from(dt: OffsetDateTime) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for DateTime