let utc_datetime: DateTime<Utc> = DateTime::from_timestamp(1704139200, 0).unwrap(); // 默认是 Utc let local_datetime: DateTime<Local> = DateTime::from_timestamp(1704139200, 0).unwrap().into(); // 使用 into() 转为 Local 1. 2. 时区转换 use chrono::{DateTime, FixedOffset, Utc}; f...
chrono::{DateTime,FixedOffset,Local,Utc,TimeZone}; #[test] fn datetime(){ // 1. Date // Date 只有年月日, 例如 2021-1-4. // 即: 2021-1-4 => Date = NaiveDate // 2. Time // Time 只有 时间,例如: 19:28:33. // 即: 19:28:33 => Date = NaiveDate ...
chrono与serde库集成得很好: usechrono::{DateTime,Utc};useserde::{Serialize,Deserialize};#[derive(Serialize, Deserialize)]structEvent{name:String,#[serde(with ="chrono::serde::ts_seconds")]timestamp:DateTime<Utc>,}fnmain(){letevent=Event{name:"Meeting".to_string(),timestamp:Utc::now(),...
正确的格式是"%Y-%m-%dT%X%.f%z"。
正确的格式是"%Y-%m-%dT%X%.f%z"。
chrono 各种时间类型转换图 时间相关概念 概念理解 UNIX 时间戳（UNIX Timestamp）也称为 POSIX 时间或 ...
use chrono::{DateTime, Utc, Duration}; fn main() { let mut utc_time: DateTime<Utc> =...
use chrono::NaiveDateTime; use postgres::{Client, NoTls}; use serde_json::Value; use std::collections::HashMap as Map; fn main() { let conn_str = "host=localhost user=postgres password=yourpassword dbname=yourdbname"; let mut client...
from_timestamp不支持毫秒。你可以把毫秒作为纳秒放在第二个参数中。但是你必须把它从时间戳中分离出来。
use chrono::{Datelike, Timelike, Utc};fn main() {let now = Utc::now();let (is_pm, hour) = now.hour12(); //把时间转化为12小时制println!("The current UTC time is {:02}:{:02}:{:02} {}", //设置格式hour,now.minute(),now.second(),if is_pm { "PM" } else { "AM" ...