pub struct Date<Tz: TimeZone> { /* private fields */ }
👎Deprecated since 0.4.23: Use NaiveDate or DateTime<Tz> instead
Expand description

ISO 8601 calendar date with time zone.

You almost certainly want to be using a NaiveDate instead of this type.

This type primarily exists to aid in the construction of DateTimes that have a timezone by way of the TimeZone datelike constructors (e.g. TimeZone::ymd).

This type should be considered ambiguous at best, due to the inherent lack of precision required for the time zone resolution.

There are some guarantees on the usage of Date<Tz>:

  • If properly constructed via TimeZone::ymd and others without an error, the corresponding local date should exist for at least a moment. (It may still have a gap from the offset changes.)

  • The TimeZone is free to assign any Offset to the local date, as long as that offset did occur in given day.

    For example, if 2015-03-08T01:59-08:00 is followed by 2015-03-08T03:00-07:00, it may produce either 2015-03-08-08:00 or 2015-03-08-07:00 but not 2015-03-08+00:00 and others.

  • Once constructed as a full DateTime, DateTime::date and other associated methods should return those for the original Date. For example, if dt = tz.ymd_opt(y,m,d).unwrap().hms(h,n,s) were valid, dt.date() == tz.ymd_opt(y,m,d).unwrap().

  • The date is timezone-agnostic up to one day (i.e. practically always), so the local date and UTC date should be equal for most cases even though the raw calculation between NaiveDate and Duration may not.

Implementations

Makes a new Date with given UTC date and offset. The local date should be constructed via the TimeZone trait.

Makes a new DateTime from the current date and given NaiveTime. The offset in the current date is preserved.

Panics on invalid datetime.

👎Deprecated since 0.4.23: Use and_hms_opt() instead

Makes a new DateTime from the current date, hour, minute and second. The offset in the current date is preserved.

Panics on invalid hour, minute and/or second.

Makes a new DateTime from the current date, hour, minute and second. The offset in the current date is preserved.

Returns None on invalid hour, minute and/or second.

👎Deprecated since 0.4.23: Use and_hms_milli_opt() instead

Makes a new DateTime from the current date, hour, minute, second and millisecond. The millisecond part can exceed 1,000 in order to represent the leap second. The offset in the current date is preserved.

Panics on invalid hour, minute, second and/or millisecond.

Makes a new DateTime from the current date, hour, minute, second and millisecond. The millisecond part can exceed 1,000 in order to represent the leap second. The offset in the current date is preserved.

Returns None on invalid hour, minute, second and/or millisecond.

👎Deprecated since 0.4.23: Use and_hms_micro_opt() instead

Makes a new DateTime from the current date, hour, minute, second and microsecond. The microsecond part can exceed 1,000,000 in order to represent the leap second. The offset in the current date is preserved.

Panics on invalid hour, minute, second and/or microsecond.

Makes a new DateTime from the current date, hour, minute, second and microsecond. The microsecond part can exceed 1,000,000 in order to represent the leap second. The offset in the current date is preserved.

Returns None on invalid hour, minute, second and/or microsecond.

👎Deprecated since 0.4.23: Use and_hms_nano_opt() instead

Makes a new DateTime from the current date, hour, minute, second and nanosecond. The nanosecond part can exceed 1,000,000,000 in order to represent the leap second. The offset in the current date is preserved.

Panics on invalid hour, minute, second and/or nanosecond.

Makes a new DateTime from the current date, hour, minute, second and nanosecond. The nanosecond part can exceed 1,000,000,000 in order to represent the leap second. The offset in the current date is preserved.

Returns None on invalid hour, minute, second and/or nanosecond.

👎Deprecated since 0.4.23: Use succ_opt() instead

Makes a new Date for the next date.

Panics when self is the last representable date.

Makes a new Date for the next date.

Returns None when self is the last representable date.

👎Deprecated since 0.4.23: Use pred_opt() instead

Makes a new Date for the prior date.

Panics when self is the first representable date.

Makes a new Date for the prior date.

Returns None when self is the first representable date.

Retrieves an associated offset from UTC.

Retrieves an associated time zone.

Changes the associated time zone. This does not change the actual Date (but will change the string representation).

Adds given Duration to the current date.

Returns None when it will result in overflow.

Subtracts given Duration from the current date.

Returns None when it will result in overflow.

Subtracts another Date from the current date. Returns a Duration of integral numbers.

This does not overflow or underflow at all, as all possible output fits in the range of Duration.

Returns a view to the naive UTC date.

Returns a view to the naive local date.

This is technically the same as naive_utc because the offset is restricted to never exceed one day, but provided for the consistency.

Returns the number of whole years from the given base until self.

The minimum possible Date.

The maximum possible Date.

Formats the date with the specified formatting items.

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

Trait Implementations

The resulting type after applying the + operator.
Performs the + operation. Read more
Performs the += operation. Read more
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Returns the year number in the calendar date.
Returns the month number starting from 1. Read more
Returns the month number starting from 0. Read more
Returns the day of month starting from 1. Read more
Returns the day of month starting from 0. Read more
Returns the day of year starting from 1. Read more
Returns the day of year starting from 0. Read more
Returns the day of week.
Returns the ISO week.
Makes a new value with the year number changed. Read more
Makes a new value with the month number (starting from 1) changed. Read more
Makes a new value with the month number (starting from 0) changed. Read more
Makes a new value with the day of month (starting from 1) changed. Read more
Makes a new value with the day of month (starting from 0) changed. Read more
Makes a new value with the day of year (starting from 1) changed. Read more
Makes a new value with the day of year (starting from 0) changed. Read more
Returns the absolute year number starting from 1 with a boolean flag, which is false when the year predates the epoch (BCE/BC) and true otherwise (CE/AD). Read more
Counts the days in the proleptic Gregorian calendar, with January 1, Year 1 (CE) as day 1. Read more
Formats the value using the given formatter. Read more
Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method returns an Ordering between self and other. Read more
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
Restrict a value to a certain interval. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
The resulting type after applying the - operator.
Performs the - operation. Read more
The resulting type after applying the - operator.
Performs the - operation. Read more
Performs the -= operation. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.