time

Format std::time output

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You can use the crate chrono to achieve the same result: extern crate chrono; use chrono::Local; fn main() { let date = Local::now(); println!(“{}”, date.format(“%Y-%m-%d][%H:%M:%S”)); } Edit: The time crate is not deprecated: it is unmaintained. Besides, it is not possible to format a time using only the standard library.

What is the maximum value of a number in Lua?

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as compiled by default, the Number is a double, on most compilers that’s an IEEE 64-bit floating point. that means 10bit exponent, so the maximum number is roughly 2^1024, or 5.6e300 years. that’s a long time. now, if you’re incrementing it, you might be more interested in the integer range. the 52-bit mantissa means that … Read more

DateTime Flutter

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Using the answer here and changing it a bit:- You can try the following: import ‘package:flutter/material.dart’; import ‘package:intl/intl.dart’; void main() { runApp(TabBarDemo()); } class TabBarDemo extends StatelessWidget { @override Widget build(BuildContext context) { DateTime now = DateTime.now(); String formattedDate = DateFormat(‘kk:mm:ss \n EEE d MMM’).format(now); return MaterialApp( home: DefaultTabController( length: 3, child: Scaffold( appBar: AppBar( … Read more

Convert UTC to “local” time in Go

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Keep in mind that the playground has the time set to 2009-11-10 23:00:00 +0000 UTC, so it is working. The proper way is to use time.LoadLocation though, here’s an example: var countryTz = map[string]string{ “Hungary”: “Europe/Budapest”, “Egypt”: “Africa/Cairo”, } func timeIn(name string) time.Time { loc, err := time.LoadLocation(countryTz[name]) if err != nil { panic(err) } … Read more

How do you time a function in Go and return its runtime in milliseconds?

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Go’s defer makes this trivial. In Go 1.x, define the following functions: func trace(s string) (string, time.Time) { log.Println(“START:”, s) return s, time.Now() } func un(s string, startTime time.Time) { endTime := time.Now() log.Println(” END:”, s, “ElapsedTime in seconds:”, endTime.Sub(startTime)) } After that, you get Squeaky Clean one line elapsed time log messages: func someFunction() … Read more

Groovy time durations

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If you just want to find the difference between two times you create yourself (for instance to see how long something takes to execute) you could use: import groovy.time.* def timeStart = new Date() // Some code you want to time def timeStop = new Date() TimeDuration duration = TimeCategory.minus(timeStop, timeStart) println duration If you … Read more