How to convert a datetime in CurrentCulture format to Gregorian DateTime?

Question

I set Global.asax as this:

protected void Application_BeginRequest(object sender, EventArgs e)
    {
        PersianCulture fa = new PersianCulture();

        Thread.CurrentThread.CurrentCulture = fa;
    }

I want to convert "1392 1 23" to "2013 4 12".

How can I do that?

Answer 1

There's no such thing as "a Persian DateTime". A DateTime value is always a Gregorian calendar value, with no specific formatting. When you format it (usually by calling ToString) you can determine how it's formatted - and if you use a culture which uses a non-Gregorian calendar, it will convert the original value into that calendar.

So for example, if you wanted to parse input from a Persian user and then convert that to the equivalent date that an English user would understand, you could use:

DateTime date = DateTime.Parse(text, persianCulture);
string englishText = date.ToString(englishCulture);