Module date 

The proleptic Gregorian calendar and HTTP-date (RFC 9110 section 5.6.7).

Examples

use parse_net as pn;

let d = pn::HttpDate::parse_imf_fixdate(b"Sun, 06 Nov 1994 08:49:37 GMT")?;
assert_eq!(d.unix(), 784_111_777);
assert_eq!(&d.format(), b"Sun, 06 Nov 1994 08:49:37 GMT");

let now = 1_792_540_800; // 2026-10-21
assert_eq!(pn::http_date_at(b"Sun Nov  6 08:49:37 1994", now)?, d);
assert_eq!(pn::http_date_at(b"Wednesday, 01-Jan-76 00:00:00 GMT", now)?.civil().year, 2076);
assert_eq!(pn::http_date_at(b"Saturday, 01-Jan-77 00:00:00 GMT", now)?.civil().year, 1977);

Structs

Civil

A broken-down UTC time.

HttpDate

A point in time with one-second resolution, from year 1 to year 9999, UTC; the value of HTTP-date fields (Date, Last-Modified, Expires).

MailDate

A point in time with a zone offset, from an email Date or Received field (RFC 5322 section 3.3).

Enums

DateFormat

The HTTP-date format a value was written in.

Functions

civil_from_days

The civil date (year, month, day) for a day count since 1970-01-01, after Howard Hinnant’s civil_from_days.

days_from_civil

Days since 1970-01-01 for a civil date, after Howard Hinnant’s days_from_civil.

days_in_month

The number of days in month (1 to 12) of year; 0 for any other month.

http_datestd

Parses an HTTP-date in any format, resolving RFC 850 years against the system clock.

http_date_at

Parses an HTTP-date in any format, resolving RFC 850 years against now.

is_leap_year

Whether year is a leap year in the proleptic Gregorian calendar.

weekday_from_days

The ISO 8601 weekday (1 = Monday … 7 = Sunday) of a day count since 1970-01-01.