chronounit 0.1.1

A date-time formatter and time-unit library for Rust time
Documentation

chrono-unit

A date-time formatter and time-unit library for Rust time

1.Items

1.1.Structs

1.2.Enums

1.3.Traits

2.Usage

2.1.TimeUnit

2.1.1.functions

  • to_nanos

    • TimeUnit::Nanoseconds.to_nanos(1024)

  • to_micros

  • to_millis

  • to_seconds

  • to_minutes

  • to_hours

  • to_days

  • value

    • TimeUnit::value_of("Nanoseconds")

2.2.Formatter

2.2.1.Builtin

let dtf = DefaultDateTimeFormatter::builtin();
// default pattern: DateTimePattern::YyyyMmDdHhMmSs

2.2.2.new

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDd);

2.2.3.of_pattern

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDd);
let dtf = dtf.of_pattern(DateTimePattern::YyyyMmDdHhMmSs);

2.2.4.Format

2.2.4.1.format_date_time_utc_default
  • DateTime<Utc>
  • Default pattern
let now = "2024-03-01 02:03:04";
let ndt = NaiveDateTime::parse_from_str(now, "%Y-%m-%d %H:%M:%S").expect("Parse error");
let datetime_utc: DateTime<Utc> = Utc.from_utc_datetime( & ndt);

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDd);

assert_eq!(
  dtf.format_date_time_utc_default(&datetime_utc),
  "2024-03-01"
);
2.2.4.2.format_date_time_utc
let now = "2024-03-01 02:03:04";
let ndt = NaiveDateTime::parse_from_str(now, "%Y-%m-%d %H:%M:%S").expect("Parse error");
let datetime_utc: DateTime<Utc> = Utc.from_utc_datetime( & ndt);

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDd);

assert_eq!(
  dtf.format_date_time_utc(&datetime_utc, DateTimePattern::YyyyMmDdHhMmSs),
  "2024-03-01 02:03:04"
);
2.2.4.3.format_naive_date_time_utc_default

with timezone

let now = "2024-03-01 02:03:04";
let ndt = NaiveDateTime::parse_from_str(now, "%Y-%m-%d %H:%M:%S").expect("Parse error");

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDd);

assert_eq!(
  dtf.format_naive_date_time_utc_default(&ndt),
  "2024-03-01"
);
2.2.4.4.format_naive_date_time_utc

with timezone

let now = "2024-03-01 02:03:04";
let ndt = NaiveDateTime::parse_from_str(now, "%Y-%m-%d %H:%M:%S").expect("Parse error");

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDd);

assert_eq!(
  dtf.format_naive_date_time_utc(&ndt, DateTimePattern::YyyyMmDd),
  "2024-03-01"
);
2.2.4.5.format_naive_date_time_default
let now = "2024-03-01 02:03:04";
let ndt = NaiveDateTime::parse_from_str(now, "%Y-%m-%d %H:%M:%S").expect("Parse error");

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDdHhMmSs);

assert_eq!(
  dtf.format_naive_date_time_default(&ndt),
  "2024-03-01 02:03:04"
);
2.2.4.6.format_naive_date_time
let now = "2024-03-01 02:03:04";
let ndt = NaiveDateTime::parse_from_str(now, "%Y-%m-%d %H:%M:%S").expect("Parse error");

let dtf = DefaultDateTimeFormatter::new(DateTimePattern::YyyyMmDdHhMmSs);

assert_eq!(
  dtf.format_naive_date_time(&ndt, DateTimePattern::YyyyMmDdHhMmSs),
  "2024-03-01 02:03:04"
);