Get current date and time with std.datetime

[Joel via Digitalmars-d-learn]

On Friday, 1 July 2016 at 15:28:04 UTC, Zekereth wrote:
> On Thursday, 30 June 2016 at 21:18:22 UTC, Luke Picardo wrote:
>>
>> Why is it so hard to simply get the current date and time 
>> formatted properly in a string?
>>
>> There are no examples of this in your documentation yet this 
>> is probably one of the most used cases.
>
> To get the current time, use Clock.currTime. It will return the 
> current time as a SysTime. To print it, toString is sufficient, 
> but if using toISOString, toISOExtString, or toSimpleString, 
> use the corresponding fromISOString, fromISOExtString, or 
> fromSimpleString to create a SysTime from the string.
>
> auto currentTime = Clock.currTime();
> auto timeString = currentTime.toISOExtString();
> auto restoredTime = SysTime.fromISOExtString(timeString);

This is what I use:

	auto getDateTimeString() {
		import std.string;
		import std.datetime;
		
		DateTime dateTime = cast(DateTime)Clock.currTime();
		with(dateTime)
		{
			return format(
				"%s " // day of the week (eg. 'Saturday')
				"%s.%02s.%s " // date, month, year
				"[%s:%02s:%02s%s]", // hour:minute:second am/pm
				split("Sunday Monday Tuesday Wednesday Thursday Friday 
Saturday")[dayOfWeek],
				day, cast(int)month, year,
				hour == 0 || hour == 12 ? 12 : hour % 12, minute, second, 
hour <= 11 ? "am" : "pm");
		}
	}