About

Date/time library

See also the kron crate.

Example

use kron_lib::*;

// Get current timestamp
let now = Kron::now();

// Print it ~ "2023-05-26T13:07:42Z\n"
println!("{now}");

// Get a specific timestamp (0 = UNIX epoch)
let ts = Kron::timestamp(626609862).unwrap();

// Default format (ISO8601)
assert_eq!(format!("{ts}"), "1989-11-09T10:17:42Z");
assert_eq!(ts.to_string(), "1989-11-09T10:17:42Z");

// Format constant
assert_eq!(ts.format(&COMPACT).unwrap(), "19891109-101742Z");
assert_eq!(ts.format(&ISO8601).unwrap(), "1989-11-09T10:17:42Z");

// Create a custom format and use it
let custom_fmt = KronFormat::new(
    "[weekday repr:short] [month]/[day]/[year] [hour]:[minute]",
).unwrap();
assert_eq!(ts.format(&custom_fmt).unwrap(), "Thu 11/09/1989 10:17");

// Use a custom format string directly
assert_eq!(
    ts.format_str("[hour]:[minute]:[second] [month]/[day]/[year]").unwrap(),
    "10:17:42 11/09/1989",
);

// Get the UNIX timestamp in seconds/nanoseconds by accessing the internal
// `time::OffsetDateTime`
assert_eq!(ts.dt.unix_timestamp(), 626609862);
assert_eq!(ts.dt.unix_timestamp_nanos(), 626609862000000000);

Format syntax

[day {padding:{zero,space,none}}] | Day of month [hour {padding:{zero,space,none},repr:{12,24}}] | Clock hour [minute {padding:{zero,space,none}}] | Minute within the clock hour [month {padding:{zero,space,none},repr:{numerical,long,short},case_sensitive:{true,false}}] | Month [offset_hour {padding:{zero,space,none},sign:{automatic,mandatory}}] | Whole hours offset from UTC [offset_minute {padding:{zero,space,none}] | Minutes within the hour offset from UTC [offset_second {padding:{zero,space,none}] | Seconds within the minute offset from UTC [ordinal {padding:{zero,space,none}}] | Day of year [period {case:{lower,upper},case_sensitive:{true,false}}] | AM/PM [second {padding:{zero,space,none}}] | Second within the clock minute [subsecond {digits:1+,1,2,3,4,5,6,7,8,9}] | Subsecond within the clock second [unix_timestamp {precision:{second,millisecond,microsecond,nanosecond},sign:{automatic,mandatory}}] | Unix timestamp [week_number {padding:{zero,space,none},repr:{iso,sunday,monday}}] | Week of the year [weekday {repr:{long,short,sunday,monday},one_indexed:{false,true},case_sensitive:{true,false}}] | Day of the week [year {padding:{zero,space,none},repr:{full,last_two},base:{calendar,iso_week},sign:{automatic,mandatory}}] | Year

See https://time-rs.github.io/book/api/format-description.html for additional details.

Changelog

Please find the CHANGELOG.md in the repository.